We can't use the nitrogen present in the atmosphere although 80% of the atmosphere consists of nitrogen only.We get this from the plants called as leguminous plants which can convert or fix atmospheric nitrogen into usable ones..
Answer:
<h2>The answer is 3.0 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question
mass of aluminum = 8.1 g
density = 2.7 g/mL
It's volume is

We have the final answer as
<h3>3.0 mL</h3>
Hope this helps you
It is the crust, the least dense layer.
A because if you multiple it, you will be moving the decimal one time
Answer:
Add G and H to determine the atomic mass for helium
Explanation: