Answer: The ocean plays a key role in this vital cycle of water. The ocean holds 97% of the total water on the planet; 78% of global precipitation occurs over the ocean, and it is the source of 86% of global evaporation. ... Water evaporates from the surface of the ocean, mostly in warm, cloud-free subtropical seas.
Explanation:
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Answer:
60
Explanation:
there's 5 lines, and 800-700=100 each line represents 20 because 20×5=100.
from a to b, there's 3 lines and 3×20=60
It should be Carbon Nanotubes
Isotopes have same atomic number or same number of protons, but different number of neutrons and mass number.
If they have same atomic number or same number of protons as the original one they are isotopes.
