28. Vitiated Air means : A) Air with more amount of O2
C) Air with less amount of CO2
B) Air without oxygen
D) All the above​

There are six elements that make up most of the human body. which of the following is not one of these six elements?

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?