Answer:
Ninety nine percent of the atmosphere is composed of Nitrogen and Oxygen
Answer:
B
Explanation:
In a command Economy, 1 is right. 3 and 4 are plain Rubbish.
The Tower Karst <span>represents the most advanced stage of erosion.</span>
Taxonomy is the branch of science that concerns labeling and classifying living things into more manageable groups. This helps scientists better understand certain species and their connections to other species.
Once this initial energy is added, the wave travels through the medium until all its energy is transferred. In contrast, electromagnetic waves require no medium, but can still travel through one.