Ques: Answer the following question given this paragraph: Q: Toxic compounds in the environment have the most severe impact on animals that are top-level what? Choices: - vegetarian - herbivores - omnivores - carnivores A:
Ans: carnivores

Ques: Answer the following question given this paragraph: Silicates are the largest mineral group. About 1,000 silicate minerals are known. Silicate minerals are also extremely common. They make up over 90% of Earth's crust!. Q: What is the largest mineral group, comprising over 90% of earth's crust? Choices: - oxides - carbonates - soils - silicates A:
Ans: silicates

Ques: Answer the following question given this paragraph: When done regularly, aerobic activities, such as cycling, make the heart stronger. Other aerobic activities include mowing lawn, shoveling snow and cross country skiing. Q: Cycling, shoveling snow and cross-country skiing are examples of what kind of heart-strengthening activity? Choices: - metabolism - anaerobic - exercise - aerobic A:
Ans: aerobic

Ques: Answer the following question given this paragraph: In addition to sunlight, aquatic producers also need dissolved oxygen and nutrients. Water near the surface generally contains more dissolved oxygen than deeper water. Many nutrients enter the water from the land. Therefore, water nearer shore usually contains more dissolved nutrients than water farther from shore. Q: Aquatic producers need nutrients and what dissolved gas, which is more abundant near the surface of water? Choices: - helium - nitrogen - methane - oxygen A:
Ans:
oxygen