What is the structure in the blood vessels where gases are exchanged? (for a Biology test)

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor