(Q).
You are presented with the question "What causes chemical changes in the minerals of a rock?" and the following answer choices: - moss - hitting it with a hammer - steady temperature - bad music - copper - iron - sodium - coal Now knowing that moss causes chemical weathering and chemical weathering causes chemical changes in the minerals of a rock, choose the best answer.
(A).
moss

(Q).
You are presented with the question "hormones produced at the base of the what control other endocrine glands" and the following answer choices: - proteins - organ - fats - animals - synapse - humans - brain - Man Now knowing that most pituitary hormones control other endocrine glands and for example, the pituitary gland located at the base of the brain produces many hormones, choose the best answer.
(A).
brain

(Q).
You are presented with the question "Veins generally carry what type of blood?" and the following answer choices: - oxygen - porous - blue - H 2 O - a path - SO2 - liquid - nektar Now knowing that veins generally carry deoxygenated blood and oxygenated blood is red, deoxygenated blood is blue, choose the best answer.
(A).
blue