(Q).
Q: Acidity is measured on what kind of scale? Choices: - electromagnetic scale - caloric scale - pneumatic scale - ph scale A:
(A).
ph scale

(Q).
Q: What is a prerequisite for fertilization to take place in plants? Choices: - mitosis - photosynthesis - germination - pollination A:
(A).
pollination

(Q).
Q: What are color and hardness physical properties of? Choices: - cells - ions - elements - matter A:
(A).
matter