When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
Carbon and nitrogen and an important element of living things. Nitrogen is a major component of DNA and amino acids while carbon can be found in almost all biomolecules. These elements, therefore, need to be renewed and recycled as they are utilized by ecosystems that is ever dynamic.
Answer:
its a becoz it is the characteristic of asexual reproduction to form daughter cell genetically identical to parent cell and to each other
Explanation:
Artificial Selection? I'm just guessing
