Which of the following soil properties is not influenced by microorganism activity?
a. soil acidity
b. amount of organic matter
c. nutrient levels
d. none of the abov

2points what is the term for a female reproductive cell? a. egg b. chromatid c. allele d. fertilization

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

Which of the following is a good strategy when it comes to desserts