A. more water and humus B. lime and humus C. fertilizers D. weedicides and fertilizers Correct Answer: Option B B.…
A. improve aeration of the soil. B. promote nitrogen fixation C. increase the rate of soil formation D. improve upon…
A. aiding red blood cells to carry more oxygen B. production of antibodies which destroy toxins of germs C. arresting…
A. Addition of chlorine B. Boiling C. Distillation D. Addition of alum Correct Answer: Option C C. Distillation
Assuming that a period of stable population size is followed by a period when natality increases by ten (10) percent…
A. water B. organic matter C. water and organic matter D. water and inorganic matter Correct Answer: Option C C.…
A. reduces the rate of transpiration B. enables the plant to conveniently eliminate its excretory products C. enables the plant…
A. thick cuticle B. sunken stomata C. broad leaves D. fleshy stem Correct Answer: Option C C. broad leaves
A. of the relatively constant daylight B. there are more plants per square feet C. of abundance of water D.…
A. Sweat B. Urea C. Heat energy D. Carbon dioxide Correct Answer: Option C C. Heat energy