To me all of the questions except the last one is right
Answer:
they are the most common rocks exposed on the Earth's surface. They cover 75% area of the Earth
Explanation:
The answer to the first question is"lithosphere" - the others are: part of earth that includes all the water (hydrosphere), all the air ( atmosphere) and all the organic matter (biosphere).
Trying to understand a solar eclipse is a kind of a scientific inquiry - it refers to the phenomenon, and the purpose is not to understand the specific instance, but the full phenomenon.
The answer would be higher. Any place inside a hachure line is a higher elevation than the hachure line. These lines are concentric lines which indicate a closed depression.
Number one is "sand dunes".
Number two is "the breakdown of rock through mechanical disintegration and physical stress."