It can become an ion because it can lose or gain an electron. It can become a part of molecule because it can form covalent bond with other atoms to gain a full valence shell.
The most reason for an organism having lipids in its body is to provide energy to the body. The fat molecules in the lipids can supply more energy gram than carbohydrate molecules. The fat molecules are composed of carbon (C), hydrogen (H), and oxygen (O) atoms. I hope this will help!! Have a great day.
An independent variable is a variable which change is not affected by that of another variable. By process of elimination you can take out B and C. An independent variable can also change so that takes out A. That leaves D.
The most important reason they are considered non living is because they cannot live and reproduce without the help of a host cell.
Pretty sure the answer is B as erosion happens from weather or rain
