Weathering
very close to erosion, but not quite.
Answer:
Explanation:
Animals don't need energy from the sun, not directly anyway. Animals get energy from the food they eat. However, that food either got its energy by eating other food, or by photosynthesis, and sooner or later almost all energy on Earth comes from the sun.
False. It can’t because a glaciers weight combined with its gradual movement can drastically reshape the landscape over hundreds and even thousands of years.
Answer:
The correct answer to the following question will be Option E (1.0 x 10⁻³ M).
Explanation:
The given values are:


L = 1 \ cm
As we know,
⇒ 
On putting the given values in the above formula, we get
⇒ 
⇒ 
⇒ 
So that option E is the right answer.
Answer:
A. 2 Fe, 3 S and 12 O
B. 43 moles of H
C. 1.0×10² moles of C
Explanation:
A. Formula for iron (III) sulfate is Fe₂(SO₄)₃
This salt has 2 atoms of iron and 3 sulfates, so in total we have:
2 Fe, 3 S and 12 O
Pay attention to the subscripts
B. Formula for quinine is: C₂₀H₂₄N₂O₂
If we continue with the example before we can say that 1 mol of Iron (III) sulfate contains 2 moles of Fe, 3 moles of S and 12 moles of O
Then, 1 mol of quinine contains 24 moles of H
So 1.8 moles of quinine, may contain (1.8 . 24) /1 = 43 moles of H
C. 1 mol of quinine contains 20 moles of C
5.4 moles of quinine may contain (5.4 . 20) /1 = 1.0×10²
<u>(As the answer must be in 2 significant figures and the real answer is 108, I had to use scientific notation)</u>