Answer:
On January 22, 2001, EPA adopted a new standard for arsenic in drinking water of 0.01 mg/l or 10 parts per billion (ppb), replacing the old standard of 50 ppb. Water systems had to meet the new standard by January 23, 2006.
Explanation:
Answer:
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators."raw water" quality – characteristics of a water source prior to treatment for domestic consumption (drinking water). See Bacteriological water analysis and specific tests such as turbidity and hard water.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators."raw water" quality – characteristics of a water source prior to treatment for domestic consumption (drinking water). See Bacteriological water analysis and specific tests such as turbidity and hard water."finished" water quality – water treated at a municipal water purification plant. See Bacteriological water analysis and Category:Water quality indicators.
Answer:Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.Testing may be performed to evaluate:ambient or environmental water quality – the ability of a surface water body to support aquatic life as an ecosystem. See Environmental monitoring, Freshwater environmental quality parameters and Bioindicator.wastewater – characteristics of polluted water (domestic sewage or industrial waste) before treatment or after treatment. See Environmental chemistry and Wastewater quality indicators."raw water" quality – characteristics of a water source prior to treatment for domestic consumption (drinking water). See Bacteriological water analysis and specific tests such as turbidity and hard water."finished" water quality – water treated at a municipal water purification plant. See Bacteriological water analysis and Category:Water quality indicators.suitability of water for industrial uses such as laboratory, manufacturing or equipment cooling.
____ is the theory that living organisms are composed of organic compounds that contain a vital force that is not present in nonliving matter.
a. Evolution
b. Natural selection
c. Vitalism
d. Homeostasis
Answer:
The answer is between a or b
but I strongly suggest the option a.
Evolution is the answer
Science can lead to the development of:
It’s important to know that science is:
What the answer to these. I really need help I have been stuck on it for 30 minutes
Answer:
Science causes the development of economy, health, infrastructure and education.
Science helps finding new knowledge and technologies.
Explanation:
Science can lead to the development of economy, health, infrastructure and education. The development in these fields makes the people of that society are more advanced due to education and having good health and financial conditions.
It’s important to know that science is a way to help in finding new knowledge and technologies. the new knowledge helps in finding new technologies which minimize the adverse affect of that technologies on the environment and also these technologies reduce human efforts and make our work easier.
what chemical structures must be present for life to exist?
Answer:
Carbon, Hydrogen, Oxygen and Nitrogen.
Explanation:
Which statement best describes both insulin and glucagon? They both provide structural support, but only insulin is a carbohydrate. They both store energy, but only glucagon is a carbohydrate. They are both hormones that regulate blood-sugar levels. They are both hormones that help fight disease.
Answer:
They are both hormones that regulate blood-sugar levels
Explanation:
Insulin is a hormone that controls the blood glucose level. It released in the blood stream when the glucose level increases after eating food. It is produces by pancreas, insulin helps the glucose to enter the body's cells where it can either be stored for future use or can be used for energy.
Glcogen is produced by alpha cells of pancreas, it is a peptide hormone. Its main function is to raise the concentration of fatty acids and glucose in the bloodstream. It is one of the main catabolic hormone of the body
As per the above mentioned statements, the option 'They are both hormones that regulate blood-sugar levels' is the correct answer.
Answer:
They are both hormones that regulate blood-sugar levels
Explanation:
just took the test
Which type of macromolecule is a product of
photosynthesis?
Answer:
During photosynthesis, the biological macromolecule glucose is produced. Glucose is a simple sugar that is made of carbon, hydrogen and oxygen.
Megan hypothesized that type AB+ is the most common blood type in the United States. After conducting a literature search, she discovered the graph at right. Based on the information in the graph, which blood type is most likely to be in shortest supply during an emergency? ✔ AB- Which statement is most likely Megan’s conclusion? The hypothesis is supported because the most common blood type in the United States is AB+. The hypothesis is not supported because the most common blood type in the United States is O+.
Answer:
Explanation:
The answer: AB-
second one : The hypothesis is not supported because the most common blood type in the United States is O+.
Answer:
c b
Explanation:
My face is burning my eyes are watery what do I do
Answer:
Applying lubricating eye drops to reduce redness and improve eye comfort. For very dry eyes, a doctor may prescribe lubricating eye drops or artificial tears. Applying a warm compress to the eyes. Make a compress by soaking a clean, soft towel in warm water and then placing it over the eyes.
Explanation:
Answer:
call 911 or use Google
Explanation:
xoxoxo lol
An engineer wants to build a house on a beach. Buildings on the shore must be built high enough to avoid flooding from oceans during storms. The highest wave height elevation measured for storms in the area is 15 feet. The support beams must reach a depth of 7 feet underground. Based on scientific knowledge, which of these support beams would be the best to use for the building?
Answer:
Answer B
Explanation:
Because i got it correct
Answer:
Support Beams 25 feet or greater
Explanation:
Not only is this the common sense game but the highest wave height is 15 feet, because the beams must reach a depth of 7 feet underground.
15+7 = 22 feet
To avoid the highest wave it must be at least 22 feet.
Monosaccharides (simple sugars) are also called carbohydrates. Using what you have noticed and learned about the elements in monosaccharides and ratios of the elements, explain why the term carbohydrate is an appropriate term for this group of compounds.
Answer:
Carbohydrate is one of major macromolecule and nutrient that is required for the energy and structure of body of almost every organism. These contains three elements that are carbon, hydrogen and oxygen in the ratio of 1:2:1. The general formula of carbohydrates is Cm(H20)n, in complex sugars m and n can be different.
Monosaccharides are simple sugars basic unit of disaccharides and polysaccharides. the ratio of carbon, hydrogen and oxygen are 1:2:1. As chemical level, they contain carbon, hydrogen and oxygen so termed as carbohydrates.
What does permeable mean
Answer:
Permeable means a (material or membrane) allowing liquids or gases to pass through it
Explanation:
Question 9(10 points)
You are heating a piece of glass and now want to pick it up. You should
a
Ob
pick up the end that looks cooler.
use a rag or paper towels.
pour cold water on it.
ос
od
use tongs.
Question 10 (10 points)
Answer:
i think urse a
Explanation:
betbe
Choose the answer that best completes the blanks of this sentence in order. The two major groups of parasitic helminths include the ____ with a thin, segmented body and the ____ with a cylindrical, unsegmented body.
Answer:
The correct answer is - flatworms and roundworms.
Explanation:
Helminths are the group of free living and some are parastic organisms present in aquatic, terrestrial environment or in animals or plants respectively. parasitic helminths are the group of worms or organisms that lives inside the GI tract or other parts of the body of host and makes them weak. The two major groups of parasitic helminths are -
Flatworms (platyhelminths) is a parasitic helminths, have leaf like body which is thin and segmented while roundworms or nematode have cylindrical and unsegmented body.
Thus, the correct answer is - flatworms and roundworms.
____refers to the exactness of a measurement whereas ____ refers to how close a measurement is to its actual value
Answer: precision and accuracy
Explanation:
Take for example a basketball. The goal is to put the ball on the hoop. By doing that you are accurate. But let's say you hit a certain part of the rim 10 times. That means you're really precise in hitting the exact spot.
Answer:
Explanation:
KLKKKK
Which of the following is not an example of a contact force
___ capture energy and convert it into a usable chemical form. ____ cannot make their own food.
Autotrophs capture energy and convert it into a usable chemical form. Heterotrophs cannot make their own food.
I NEED HELP IM DUMB!!!!!
I have a few.... (I'm not that smart either lol
1. Fertilization
2. Female
3. Egg
4. Sperm
10. 46
Answer:
In the human life cycle, fertilization takes place to produce an offspring. The female provides the egg and the male provides the sperm. Both of these cells are referred to as gamete cells and are represented by the symbol n. The single cells fuse to form a zygote. These cells are represented by the symbol 2n. The fertilized egg has 46 chromosomes and has been through the process of meiosis. The cell division process of _____ occurs when the _____ number is reduced.
Explanation:
I got stuck about this far in. I'm not 100% sure all of this is correct but I tried my absolute best.
What information did you include in your answer? Check all that apply. uranium-lead (U-Pb) dating relative chronology expected effect of additional similar results on mass-extinction hypothesis connection between the use of new technology and a possible revision in the mass-extinction hypothesis identification of the use of the new technology as a new experimental method
Answer: D connection between the use of new technology and a possible revision in the mass extinction hypothesis
E identification of the use of new technology as a new experimental method
Explanation:
The connection between the use of new technology and a possible revision in the mass extinction hypothesis and identification of the use of new technology as a new experimental method is the information to include in an answer. So the correct options are D and E.
What is a hypothesis?
Repeated experimentation and observation have been used to devise scientific theories. These theories have been further referred to by peer reviews before they have been generally accepted by the scientific community.
Science involves methods and data that make sense of the world. The methods of principles are internally-consistent and well described. The progression from a hypothesis to a theory can only be through testable, scientific laws. There are only a few scientific facts that are natural laws as well but there are many hypotheses that can be tested to generate a theory.
Therefore, the correct options are D and E.
Read more about scientific hypothesis, here
https://brainly.com/question/14074757
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What is true about the expiration dates of medications?
Answer:
Most medication does not go bad, but it is most effective by that date.
Explanation:
For the most part ingredients do not expire, but to get the best out of your medication it is best to follow the expiration guidelines
Facts about human brain
Answer:
The human brain is the largest brain of all vertebrates relative to body size. It weighs about 3.3 lbs. The average male has a brain volume of 1,274 cubic centimeters. The average female brain has a volume of 1,131 cm3. The brain makes up about 2 percent of a human's body weight.
Explanation:
What are 3 negative effects of under nutrition
Answer:
low weight for age, poor appetite, irritability
Explanation:
be low is never fun it has alot of i.pact on our bodies physically but most of all mentally
All life on Earth is part of the Eukaryota domain, except:
-plants
-bacteria
-animals
-bugs
Answer:
Bacteria
Explanation:
Bacteria is a Prokaryote and all the others are Eukaryotes.
Answer:
bacteria is a procaryotes under the kingdom monera
2 Describe why it would be an advantage for the seeds
to be able to grow at any angle
Answer:
If plants could grow at any angle, resources could be better used, less labor would be spent, and crop production would increase.
Explanation:
By growing at different angles, crops could be generated in different locations that would not normally be beneficial or feasible for plant growth.
For this reason, land use would be higher for farmers as harvests would increase by making better use of the land and generating ideas to make better use of resources.
They could be better used, for example, a scale cultivation on a sloping terrain, no time would have to be spent flattening the ground and only the crops would have to be cared for.
Question 6 of 10
A scientist bred fruit flies in two separate containers with different food
sources for many generations. When she put the fruit flies from the two
containers together again, she observed that the flies preferred mates raised
on the same food. Which conclusion can the scientist draw?
A. Fruit flies prefer the container where they were bred.
B. Fruit flies mate randomly regardless of how they were bred.
Ο Ο Ο
C. Fruit flies can adapt to eating different food sources.
D. Fruit flies prefer mates adapted to the same food source.
SUBMIT
Answer:
D. Fruit flies prefer mates adapted to the same food source.
Explanation:
Food and diet varies depending on the location of an animal, that being said, it is in the nature of an animal to mate with another in order to produce offspring who can survive on the same food source. Instinctively, a fly would see a mate who's diet differed and think that their offspring would not be able to survive due to the lack of that varying food source.
Which is not an example of structural adaptation
Answer:
of a lion
Answer : Has strong legs for running
of a plant
Answer : Thorns or spines to protect the plant from animals
of an animal
Answer : Goslings following their mother to stay protected.
of a plant
Curling around a tree trunk
Explanation:
Hope it's help you. :-)
PLZ HELP ASAP
1. What is the role of the cell membrane in cell division?
2. What is the role of the nucleus in cell division?
3. What is the role of the centricles in cell division?
4. What is the role of the microtubules in cell division?
5. Why are cells limited in size?
6. A cell with 2cm sides has what surface area?
Most aquatic plant life can be found in the littoral zone. T or F?
Answer:
True.
Explanation:
The littoral zone has a greater biodiversity than the benthic zone because the littoral zone can support plant life.
Answer:
true
Explanation:
what is biology
what is leaf
Biology : The scientific study of living
things
Leaf: The principle lateral appendage of the vascular plant stem,usually born above ground and specialized for photosynthesis
Explanation:
Answer:
Biology is the scientific study of living things.
Leaf is a structure on a plant that is attached to the stem.
Explanation:
answer fastttt!!!!!Start with argon in a gaseous state. Manipulate the heat variable to change it to a
liquid, then a solid. Explain what you did to make this happen:
Answer:
By lowering the temperature.
Explanation:
Argon is a gas at room temperature. By changing its state from gas into liquid, we have to lower the temperature up to -185.7 degree Celsius while to change its state from liquid to solid, we have to lower the temperature up to -189.2 degree Celsius. There are two process occurs such as condensation and solidification, in condensation, argon gas is converted into liquid while in solidification, liquid argon is converted into solid.
Question 6 (1 mark)
Learning goal 2: There are usually more prey compared to the
predators that feed on them.
Which of the following statements explains this?
All of the energy stored in the prey is transferred up the
food chain
Predators need energy for cellular respiration but their
prey do not
Only some of the energy stored in the prey can be used
by the predators to stay alive
Answer:
option A
Explanation:
Energy gotten from the prey will be transferred up to the food chain.
so directly or indirect, all other members of the food depend on this energy
What kind of alcohol is best to kill the corona virus?
1.45%
2.70%
3.90%
4.85%