Q: What moves nitrogen back and forth between the atmosphere and organisms? Read this paragraph and choose the correct option from the provided answers: The nitrogen cycle moves nitrogen back and forth between the atmosphere and organisms. Choices: - the calcium cycle - the Krebs cycle - the leakage cycle - the nitrogen cycle A:
the nitrogen cycle

(Question)
Q: What two things are used in optical instruments to reflect or refract light? Read this paragraph and choose the correct option from the provided answers: Mirrors and lenses are used in optical instruments to reflect or refract light. Optical instruments include microscopes, telescopes, cameras, and lasers. Choices: - orientations and lenses - mirrors and magnifiers - prisms and microscopes - mirrors and lenses A:
(Answer)
mirrors and lenses

Ques: Q: The electroplating process transfers metal from the anode to which part of the cell? Read this paragraph and choose the correct option from the provided answers: The concentration of copper ions in the solution is effectively constant. This is because the electroplating process transfers metal from the anode to the cathode of the cell. Other metals commonly plated onto objects include chromium, gold, silver, and platinum. Choices: - plasma - electrode - atom tube - cathode A:
Ans: cathode

(Q).
Q: What type of salts are secreted into the small intestine to aid in the digestion of fats? Read this paragraph and choose the correct option from the provided answers: Bile salts are secreted into the small intestine to aid in the digestion of fats. Choices: - zinc - Table Salt - sodium - bile A:
(A).
bile

Ques:Q: The variation in a sample can be represented by what quantity, which means the total spread of values? Read this paragraph and choose the correct option from the provided answers: The variation in a sample can be represented by the range, or the total spread of values. Choices: - variety - mode - median - range A:

Ans:range

Q: When organisms penetrate a rock, they accelerate breakdown by chemical means and what other means? Read this paragraph and choose the correct option from the provided answers: Choices: - ecological - temperature - geological - mechanical A:
mechanical