Answer:
When the water evaporates, it leaves behind a solid layer of minerals
Answer: A
Explanation:
Our universe was born from the Big Bang about 13.5 billion years ago. ... Our solar system began forming about 4.6 billion years ago within a concentration of interstellar dust and hydrogen gas called a molecular cloud. The cloud contracted under its own gravity and our proto-Sun formed in the hot dense center.
Lipids are NOT made of nucleotides. Nucleotides are the building block for nucleic acid, if that answers your question.