Answer:
1. Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local.. 2.Mining in the real world can affect society, ecosystems, and the environment of a specific region because all the minerals that you are looking for won't be right where you want them to be. It is not going to be in the same area. Instead, it will be scattered throughout the mines and you will have to search for them. 3.Students act as mining engineers and simulate ore mining production by using chocolate chip cookies. They focus on the cost-benefit analysis of the chocolate ore production throughout the simulation, which helps them understand the cost of production. As students “mine” with tools such as paperclips and toothpicks, they keep records of their costs—land (cookie), equipment used, cookie size before and after production, and time spent. While the goal is to make as much profit as possible, other costs and goals are taken into consideration—as in real-world mining engineering. For example, mining engineers also consider the resulting amount of destruction to the lithosphere when deciding the best method to obtain ore. Thus, a line item for land reclamation cost is included from the beginning. A provided worksheet serves as a profit and loss statement. 4.Mine reclamation is the process of restoring land that has been mined to a natural or economically usable state. Although the process of mine reclamation occurs once mining is completed, the planning of mine reclamation activities occurs prior to a mine being permitted or started.
Explanation:
i don't have a explanation but i hope this helps
The extraction of minerals or other geological elements from the earth is known as mining.
How does mining affect society, ecosystems, and the environment?Society: Mining increases social conflicts, causes relocation of the community, affects the health of humans and animals and causes loss of land. However, it helps increase economic growth. Ecosystem: Mining adversely affects biodiversity and destroys the habitat.Environment: Mining causes erosion, sinkholes, deforestation, overuse of water resources, waste disposal issues, acidification of soils and water bodies, and their contamination.What is land reclamation?It is the process by which the mined lands are filled, thereby producing land that can be used. They can be used to restore the environment. However, the ecosystem and society's restoration takes a long time.
Is it beneficial?While the land that cannot be used now has been restored, the materials that have been used have been taken from a source, and that can lead to changes in the ecosystem at the source.
What is the reasoning that supports land reclamation as the solution?The goal is to produce as much profit as feasible. When determining the optimum approach to collecting ore, mining engineers, take into account the amount of lithosphere destruction, and hence, from the start, land reclamation costs are included.
What is the role of mine reclamation legislation?It ensures that land reclamation activities are planned before a mine is licensed or started.
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What is an inference? Observation?
Sc U4 Forces and Motion Assessment (Lunch) / 8 of 25
A boy and his two friends push three toy cars across a smooth floor. Each car is being pushed at the same constant speed.
Car
Time of push
Distance of push
A
10 seconds
5 meters
B
5 seconds
?
с
15 seconds
Determine the distance cars B and C must travel in order for all cars to go the same speed. (DOK 2, AKS 8a)
O A Cars B and C must travel 5 m since that is how far Car A travelled
OB. Car C must travel 7.5 m and Car B must travel 2.5 m
O C. Car B must travel 20 m and Car C must travel 30 m
D. Car B must travel 7.5 m and Car C must travel 2.5 m
Answer:
The answer is B because you need to have both of the distances the same
Explanation:
1. How is it possible for carbon to be both a necessity and a danger at the
same time?
Answer:
Because you gain weight...
Explanation:
6. Below is a strand of DNA. Give me the complementary DNA strand.
ATCGTTG GACTGACTITA
what's the answer?
Answer:
TAGCAAC CTGACTCAAT
Explanation:
a = t
g = c
I hope this helped and if it did I would appreciate it if you marked me Brainliest Thank you and have a nice day!
Answer:
TAGCAAC CTGACTGA(there is no I) AT
Which of the following happens when a cell divides? *
Answer:
when a cell divides
many other cell is formed
for example if one cell divides two cells will be formed.
8.
(06.02 MC)
Which organelle is most likely to be found in both Archaea and Bacteria and why? (2 points)
Both require chloroplasts for photosynthesis.
Both have mitochondria to provide energy for the cell.
Both need a nucleus in which to store their DNA.
Both use ribosomes to synthesize proteins.
Answer:
The organelles that are most likely to be found in Archaea and Bacteria are ribosomes, which they use to synthesize proteins.
Explanation:
Both Archaea and bacteria are unicellular prokaryotic organisms, which have in common lack of nucleus and most of the organelles, however they have ribosomes that allow them to perform protein synthesis.
The differences between Archaea and bacteria have allowed taxonomic classification in different domains.
The other options are not correct because:
Although some bacteria and archaea can photosynthesize, it is not common to find chloroplasts in these organisms. Archaea and bacteria lack mitochondria. Prokaryotic organisms such as Archaea and bacteria do not have a nucleus, and their genetic material is dispersed in the cytoplasm.Answer:
Both use ribosomes to synthesize protien.
Hope this helps:)
which rna base bonded with the thymine
Answer:
Uracil
Explanation:
Adenine and thymine form base pairs that are held together by two bonds in DNA. BUT in RNA thymine is replaced with Uracil
Where does all of Earth's weather occur?
Answer:
troposphere
Explanation
The troposphere is the lowest layer of the atmosphere. This is the layer where we live and where weather happens. Temperature in this layer generally decreases with height. The boundary between the stratosphere and the troposphere is called the tropopause.
Hope that helps!
The investigations conducted by Edwin Chargaff support the idea that DNA is the source of heritable information, and they also show a relationship between the ratios of the different nitrogenous bases in DNA. Based on the results of Chargaff's research, which is the best estimate of an organism's DNA base composition that contains 28.0% thymine
all the thymine pairs with adenine, therefore there is the same number of adenine and thymine bases and the same percentage
so we have 28%thymine and 28% adenine
100-28-28=44% left
this 44% is guanine and cytosine. All of the guanine pairs with cytosine and all of the cytosine pairs with guanine so we have 44/2=22% cytosine and guanine
composition:
28%adenine
28%thymine
22%guanine
22%cytosine
I just need the correct answers
What happens to the domains in this iron nail when the south pole ofa
magnet approaches it from the top?
OA. Al the arrows align to point right.
OB. AI the arrows align to point up.
OC. AIl the arrows align to point left.
OD. AIl the arrows align to point down.
Answer:
B
Explanation:
Answer: all the arrows align to point left
Explanation:
The energy value listed for foods refers to the
a. total amount of chemical energy in the food
b. amount of energy available as fuel for the body
C. total nutritional value of the food
d
amount of carbohydrates
Answer:
b. amount of energy available as fuel for the body
Answer: B
amount of energy available as fuel for the food
Explanation:
EDGE 2021
The type of immunity that is general and nonspecific and recognizes microbial invaders quickly is called:_______
Answer:
Innate or natural immunity
Explanation:
Innate immunity is a defense system that we are born with and that protects us against antigens. It is the sum of all defense mechanisms that occur naturally to protect an individual from infectious diseases. They are physiological mechanisms that are present throughout the entire animal kingdom and it is an inherent quality of each species. They are not specific to a given pathogen, nor do they generate memory
Why does a crumpled piece of paper hit the ground before a flat sheet of paper? (DOK 1, AKS 8c)
OA The crurmpled paper is less massive.
O
B. The acceleration of gravity is greater on the crumpled paper.
OC. There is more air resistance against the flat paper.
OD. The crumpled paper is more massive.
Answer:
C because a flat paper is spread out while a crumbled paper has more gravity but little air resistance
E. coli strain B is doubly infected with two rII mutants of phage T4. 0.2 ml of a 108 dilution of the progeny is plated on E. coli B and 0.1 ml of a 104 dilution of the progeny is plated on E. coli K. 16 plaques appeared on strain B, 400 on strain K. Calculate the recombination frequency between these two mutations.
To Find :
The recombination frequency between these two mutations.
Solution :
Formula of calculating recombination frequency is :
[tex]R.F = \text{Number of mutations}\times \dfrac{\text{number of k plaques} \times D.F }{\text{Volume used}}\times \dfrac{Volume'}{\text{Number of B plaques} \times D.F' }}[/tex]
Putting all given values in above equation, we get :
[tex]R.F = \dfrac{2\times 400\times 0.2 \times 10^4}{16\times 0.1\times 10^8}\\\\R.F = 0.01[/tex]
Therefore, the recombination frequency between these two mutations is 0.01 or 1 %.
Given:
No. of mutation = 2Volume, [tex]V = 0.1[/tex][tex]V'= 0.2[/tex]
k plaques = 400The formula:
→ [tex]R.F = No. \ of \ mutations\times \frac{No. \ of \ k \ plaques\times D.F }{Volume}\times \frac{Volume'}{No. \ of \ B \ plaques\times D.F'}[/tex]
By putting the values in the above formula, we get
→ [tex]= \frac{2\times 400\times 0.2\times 10^4}{16\times 0.1\times 10^8}[/tex]
→ [tex]= \frac{160\times 10^4}{1.6\times 10^8}[/tex]
→ [tex]= 0.01[/tex]
Thus the solution above is the right approach.
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What is the chromosome number produced in daughter cells as a result of mitosis?
A. 1n
B. 2n
C. 4n
The chromosome number produced in daughter cells as a result of mitosis is the 2n that is in option B, as in this process, the parent cell and the daughter cell contain the same genetic content.
What is the significance of a set of chromosomes?There are different sets of chromosomes in different species such as wheat's genetic contents differ from those of humans because humans have two sets (2n) of chromosomes, whereas some plants have tetraploid sets of chromosomes. The number of chromosomes remains constant after cell division in mitosis, and the cell gets the exact same copy in mitosis, which is 2n in the case of the human, as humans have a 2n set.
Hence, the chromosome number produced in daughter cells as a result of mitosis is the 2n that is in option B, as in this process, the parent cell and the daughter cell contain the same genetic content.
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the word bank is at the bottom !
Interphase - DNA replication occurs
Prophase - Homologous chromosomes pair up forming a tetrad
(The first two might be wrong so I apologize)
Metaphase - Spindle fibers attach to chromosomes
Anaphase - Spindle fibers pull chromosomes toward opposite ends of the cell
Telophase/Cytokinesis - Two new nuclear membranes form. Two new cells are formed
explain two characteristics of arthropods that makes them most successful of vertebrates
Answer:
1. Exoskeleton
2. Jointed appendages
Please find the explanation of the mentioned characteristics below
Explanation:
Arthropods are a group of animals that lack backbones i.e invertebrates but possess jointed legs. Arthropods as their name implies all belong to a large phylum called ARTHROPODA. They include insects, crustaceans etc. Due to their large number among other animal species, their outstanding variety etc, they are considered the MOST SUCCESSFUL animals.
This success of arthropods can be attributed to the characteristics they possess. Two of them are:
- EXOSKELETON: The outside skeleton possessed by members of these phylum supports their body, movement and general protection.
- JOINTED LEGS/APPENDAGES: Arthropods are virtually the only set of organisms that have jointed appendages giving them the adaptational ability to live and thrive in almost every habitat, if not all.
What causes uncontrolled cell division at the genetic level?
Answer:
mutations affecting proteins that normally regulate the cell cycle.
Explanation:
The function of the cell cycle is the duplication of DNA molecules in chromosomes and precisely separated by copying into two genetically identical daughter cells.
A tumor is an abnormal mass of tissue that results from the uncontrolled growth of cells.
CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION THANK YOU:)
Answer:
C
Explanation:
Low productive rate
Which nitrogen base sequence is the partner of O C-A-T-C-G-A?
O C-A-T-C-G-A
O G-T-A-G-C-T
O (wrong) T-G-C-T-A-G
O G-C-A-T-G-T
Answer:
3rd one
Explanation:
hope so but if not am sorry
Animals that live on intertidal rocks often exhibit compressed or dorsally flattened bodies. this is an adadptation that protects against:______
a. sunlight
b. high temperatures
c. desiccation
d. wave shock
e. predation
Answer:
d. wave shock
Explanation:
An adaptation can be defined as a phenotypic trait that makes an organism and/or species better suited to its environment, thereby this organism/species will have more chances to survive and reproduce in such conditions. Rock-dwelling aquatic animals have different ecological, morphological and behavioral adaptations to survive in this type of environment. In this regard, it is well-known that these organisms show dorsally flattened bodies, since it is one fundamental morphological adaptation which helps them to dissipate the force of the waves.
If you soak your hands in dishwater, you may notice that your skin absorbs water and swells into wrinkles. This is because your skin cells are ______ to the _______ dishwater. Question 16 options: hypotonic....hypertonic hypertonic.....hypotonic isotonic.....hypotonic hypertonic....isotonic
Answer:
Hypertonic...hypotonic
Explanation:
Hope this helped, Have a Wonderful Day!!
which of the following is not a characteristic of the plasma membrane?
1. contains different types of protein
2. composed of phospholipid bilateral
3. contains the cells dna
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☀️ It's 65°F in Los Angeles
Which option identifies the land stewardship issue of most concern in the following scenario?
The weather this year has been unusually dry; nevertheless, the number of cattle in the herd has increased.
wildfire control
erosion control
disease control
water conservation control
Answer:
wildfire control
Explanation:
Cattle grazing has been used as an effective wild fire control. On a yearly basis, grazing can reduce the amount and alter the continuity of fine fuels, potentially changing wildfire fire spread and intensity (Stand et al., 2018).
Historically, however, grazing pressure was one of greatest tools for reducing fine fuels that carry wildfires (Miller et al., 1994).
Livestock are very important in reducing the risk of wildfire because they remove the fine fuels; this removal of fine fuels by livestock grazing results in less occurrences of fire hazards.
Answer:
the correct answer is "erosion control"
Explanation:
The correct answer is erosion control. A high animal load on grasslands experiencing drought can lead to serious erosion problems. This situation can be exacerbated if winds remove topsoil; combined with overgrazing and drought, any new moisture could further the erosion of the soil.
Explain in short about the plant resources of nepal??
Answer:
Ficus religiosa, Ocimum sanctum, Elaeocarpus sphaericus, Desmostachya bipinnata, Garden angelica, Luculia gratissima, Meconopsis villosa, Persicaria affinis, Hardwood, bamboo, palm, and sal trees.
Explanation:
Ficus religiosa, Ocimum sanctum, Elaeocarpus sphaericus, and Desmostachya bipinnata are the medicinal plants that are grown in Nepal which is used in different medicines. Garden angelica, Luculia gratissima, Meconopsis villosa, and Persicaria affinis etc are the important plants which are on large area. Hardwood, palm, bamboo, and sal trees are grown on the Terai region.
which shows the temperatures of these three substances, in order, from greatest to least?
water vapor, ice, water
ice, water, water vapor
water vapor, water, ice
Answer:
B. ice, water, water vapor
THIS IS D just took the test on edge 2021
In humans, freckles (F), widow’s peak (W) and attached earlobes (E) are all unlinked dominant traits. A man with freckles, widow's peak and attached earlobes marries a woman with freckles, straight hairline, and attached earlobes. Their first child has no-freckles, straight hairline, and detached earlobes. What is the probability that their second child has no-freckles, straight hairline, and attached earlobes? Select one:
Answer:
The correct answer is - 3/32.
Explanation:
We know that freckles F is dominant over no freckles f, similarly, Widow's peak W is dominant over straight hairline w and attached earlobes are dominant over free earlobes.
So, the combination of alleles for each phenotype would be:
No freckles = ff , Freckles = FF, Ff
Free earlobes = ee , Attached earlobes = EE, Ee
Straight hairline = ww , Widow's peak = WW, Ww
In the question, it is given that the first child has no-freckles, straight hairline, and detached earlobes that would be - ffwwee genotype and as it is given that all alleles are in recessive which means both parents must have recessive alleles.
So, the correct genotype of the man will be FfWwEe and the woman will be FfwwEe.
(man = freckles, widow's peak, and attached earlobes (F_W_E_) and woman = freckles, straight hairline, and attached earlobes (F_w_E_))
then cross between: FfWwEe × FfwwEe
The probability of the freckles and no freckles would be-
Ff × Ff = 3/4 freckles, 1/4 no freckles
The probability of the widows and straight hairline would be-
Ww × ww = 1/2 widows peak, 1/2 straight hairline
The probability of the free earlobes and attached earlobes would be-
Ee × Ee = 3/4 attached, 1/4 free earlobes
Combined possibility of all three phenotypes: no freckles, straight, attached would be = 1/4 × 1/2 × 3/4 = 3/32
Thus, the correct answer is - 3/32.
Where is O2 used (broken in half and turned into a water molecule)?
Answer:
[tex]H_{2}O[/tex]
Explanation:
Describes three types of stimuli that cause plants to exhibit tropism.
Answer:
The three stimuli that cause the plants to exhibit tropism are:
1. Touch: This stimulus triggers thigmotropism, which is the turning or bending of the plant and tendrils in response to the touch.
2. Light: This stimulus triggers phototropism. It is how the plant reacts toward the direction of the light source. In this case, the stem may bend in response to the direction of the light.
3. Gravity: This stimulus triggers phototropism gravitropism, which is responsible for the downward growth of roots into the soil.
The three stimuli that cause the plants to exhibit tropism are: Touch, light and gravity.
What is Tropism?
Tropisms are biological occurrences that signify the expansion or rotation of a living thing, typically a plant, in response to environmental stimuli. Tropisms are frequently connected to plants (although not necessarily restricted to them).
Movement or activity in response to a particular stimulus is more likely to be viewed by an organism where it is capable of purposeful physical movement (motility).
1. Touch: This stimulus triggers thigmotropism, which is the turning or bending of the plant and tendrils in response to the touch.
2. Light: This stimulus triggers phototropism. It is how the plant reacts toward the direction of the light source. In this case, the stem may bend in response to the direction of the light. 3. Gravity: This stimulus triggers phototropism gravitropism, which is responsible for the downward growth of roots into the soil.
Therefore, The three stimuli that cause the plants to exhibit tropism are: Touch, light and gravity.
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