The Grand Canyon began its formation about 5 my ago by the erosive action of the Colorado River. Its sedimentary layer composition reflects its history, keeping fossilized living forms that used to inhabit the area.
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The Grand Canyon formation began approximately 5 million years ago, thanks to the erosive action of the Colorado River.
The strength of the colorado river caudal, together with deglaciation and humidity factors, began to cause an uncontrollable erosion process in these lands that were previously part of the sea bottom.
Originally many strata and sediments accumulated at the bottom of the ocean. With time these extensive areas were exposed when the Rocoses Mountains got formed by the end of the cretaceous (70 million years ago).
Now, by looking at the composing layers, it is possible to understand its formation.
The Grand Canyon is almost entirely composed of sedimentary rock.
It was formed while sediments of sand and mud got deposited in thick layers at the bottom of the ocean and got compacted through the pass of time until becoming a rock.
Sedimentary rocks have been chronologically accumulating for years, reflecting the geological formation known as superposition.
According to this sedimentary deposition, we can distinguish the older rocks located in the deepest areas from the younger rocks in more superficial layers.
Each layer keeps fossilized organisms that used to inhabit this area in the past.
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HELP THIS IS SCIENCE (No links or I'll rip off your fingers)
Sam found two pieces of pure silver on two different continents and melted them.
Why did the two pieces of pure silver have the same melting point?
a. Silver is composed of the same types of atoms.
b. The melting point of all natural minerals is the same.
c. The melting point of all metals is the same.
d. Silver is a metal with high conductivity.
Answer:
D
Explanation:
Silver is a metal with high conductivity ....
Hope its right !
Hello <3 I just need some help with periodic table of elements.
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What is the element's name and symbol? Sodium
Is it a metal, nonmetal, or metalloid?
Which family does it belong to?
How many protons, neutrons, and electrons does its neutral atom have?
Please help with the non-answered ones, following sodium please ^^
Answer:
11
Explanation:
An atomic number of 11 means this atom will have 11 protons. A mass number of 23 means 23 - 11 this atom will have 12 neutrons. Since this atom is neutral the positive protons must be equal to the negative electrons. This atom will have 11 electrons
Answer:
Sodium: Na
It is a metal
It's family is Alkali metals
Its atomic number is 11
It has 12 neutrons, 11 protons, 11 electrons
Sarah lives in a house at the bottom of a hill. Every time it rains, water collects next to her house. Which of the following is the best possible explanation for this?
a. The rainwater is undergoing deposition on the hill.
b. The rainwater is transpiring from the tree leaves.
c. The rainwater is evaporating at the top of the hill.
d. The rainwater is not infiltrating into the ground.
Answer:
d
Explanation:
the rainwater is not infiltrating into the ground.
In the formula shown, what is the total number of atoms present?
Answer:
your answer
24. hope helpful answer
hey! i know this isnt chemistry but uh I dont think anyone gonna answer me in psychics and its due in 30 minutes... marking brainlest if correct- yeah...
Answer:
A. Adding another bulb will make the two of them light a little less brighter since the electrical flow is divided into two making them work.
B. There is a possibility that the flow of electricity maybe little due to the thickness of the wire. There could also be a rise in the temperature of the cell and the bulb.
C. The Bulb will shine brighter because of the extra power or electricity provided! Also, if the voltage is too much, expect the bulb to burn out or sadly, explode.
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The lines in an element's atomic spectrum result from
electron spins going in opposite directions.
energy that is spread out among an atom's electrons.
electrons moving from a lower to a higher energy level.
electrons moving from a higher to a lower energy level.
The lines in an atomic spectrum indicates the transition of electrons from higher energy level to the lower energy level. Hence, option d is correct.
What is atomic spectroscopy?The investigation of the electromagnetic radiation that atoms absorb and release is known as atomic spectroscopy. Atomic spectroscopy, specifically the electromagnetic spectrum or mass spectrum, is used to determine the elemental compositions of substances since distinct elements have distinctive spectra.
Depending on the type of spectroscopy being utilized or the atomization source, it can be divided. The primary distinction in the latter instance is between optical and mass spectrometry. Although substantially more difficult, mass spectrometry typically provides significantly higher analytical performance.
Electrons can migrate between orbitals, but doing so requires them to either absorb or emit energy equivalent to the difference in energy levels between the quantized orbitals of their respective atoms.
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Which of the following best describes what must have happened in the past in an area with a large petroleum trap?
A.
Organic matter must have been buried and placed under intense heat and pressure until it became petroleum. Then, the petroleum must have collected inside an impermeable underground rock formation.
B.
Organic matter must have been exposed to intensely cold temperatures until it became petroleum. Then, the petroleum must have moved up to the Earth's surface through permeable underground rock formations.
C.
Permeable underground rock formations must have allowed the movement of organic matter deep into the Earth. Then, the organic matter must have been exposed to freezing temperatures until it formed petroleum.
D.
Impermeable underground rock formations must have blocked the movement of organic matter through the Earth's surface. Then, the organic matter must have decomposed to form petroleum inside the rock formations.
Answer:
Explanation:
de an impermeable underground rock formation.
B.
Organic matter must have bee
HELP ME FAST (I WILL MARK BARINLIEST IF CORRECT)
Answer: the reason why the balance increases is because it is heavier so that's why it increases more
Explanation: the definition for balance is the ability to move or to remain in a position without losing control or falling. : a state in which different things occur in equal or proper amounts or have an equal or proper amount of importance.
Mass is the amount of matter something is made from. Big things are generally more massive than small ones. If you have a lump of iron or copper and take it to different places on Earth (or even the Moon) to measure it's mass, you'll always get the same result.
Weight is a measurement of how much the force of gravity acts on a given amount of mass. The force of gravity varies slightly all over Earth so, while your lump of iron has the same mass, its weight varies: it might weigh a little bit more in Bangladesh than it does in Tibet. What about on the Moon? Gravity is about one sixth the strength on the Moon as it is on Earth. So things weigh only one sixth as much on the Moon as they do on Earth, even though their mass is exactly the same in both places. Why are things heavier on Earth? Essentially because Earth is so much more massive than the Moon. It attracts objects with more force—and that gives them more weight.
hope this helps you!!!!!!!!!!!!!!!!!
Please only answer if you know the actual thing, don't search it up! Are these correct? :P
Hey buddy I am here to help!
1. C
2. A
3. A & B
4. C
5. C
6. A
7. A
8. A & C
Hope it helps!
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