99% of all which element is found inside of the cells of the body? a) sodium b) calcium c) zinc d) magnesium

Injuries in the environment are a result of a. lower level activities. b. irresponsibility. c. mismatch between a child's abilities and activities. d. children not paying attention.

What happens in the process of photosynthesis

Acne is caused by a. a strict diet b. eating at night c. hormones d. dry skin select the best answer from the choices provided. a b c d