(Q).
Q: What causes acid rain? Choices: - carbon dioxide - heavy pollution - chemicals in waterways - air pollution A:
(A).
air pollution

(Q).
Q: What is the second stage of photosynthesis? Choices: - pigment release - production of protein - glucose destruction - production of glucose A:
(A).
production of glucose

(Q).
Q: Some earthworms can also reproduce asexually by fragmentation followed by what? Choices: - fertilization - germination - digestion - regeneration A:
(A).
regeneration