Answer the following question given this paragraph: Sedimentary rock layers that are not horizontal are deformed. Q: If a sedimentary rock layer is not horizontal, what is it? Choices: - striated - mineralized - igneous - deformed A:
deformed
Answer the following question given this paragraph: Pesticides were designed to kill bothersome insects. However, sometimes these pesticides will stop working. A pesticide that has worked in the past may no longer kill a particular type of insect. This is due to the development of resistance in the population of insects. The development of resistance to pesticides is one example of microevolution, a small change in a population. Q: Resistance to pesticides in a population of insects is an example of what? Choices: - macroevolution - redistributions - extinction - microevolution A:
microevolution
Q: Answer the following question given this paragraph: One major factor that limits the length of food chains is energy. Energy is lost as heat between each trophic level due to the second law of thermodynamics. Thus, after a limited number of trophic energy transfers, the amount of energy remaining in the food chain may not be great enough to support viable populations at yet a higher trophic level. The loss of energy between trophic levels is illustrated by the pioneering studies of Howard T. Odum in the Silver Springs, Florida, ecosystem in the 1940s (Figure 46.5). The primary producers generated 20,819 kcal/m2/yr (kilocalories per square meter per year), the primary consumers generated 3368 kcal/m2/yr, the secondary consumers generated 383 kcal/m2/yr, and the tertiary consumers only generated 21 kcal/m2/yr. Thus, there is little energy remaining for another level of consumers in this ecosystem. Q: Energy is lost as heat between each trophic level due to the second law of what? Choices: - reactions - particles - chemistry - thermodynamics A:
A: thermodynamics
Question: Answer the following question given this paragraph: When iron and sulfur are mixed together in a certain ratio and heated, a chemical reaction occurs. This results in the formation of a unique new compound, called iron sulfide (FeS). A magnet cannot be used to mechanically separate the iron from the iron sulfide because metallic iron does not exist in the compound. Instead, another chemical reaction is required to separate the iron and sulfur. Q: When iron and sulfur are mixed together in a certain ratio and heated, what do they become? Choices: - iron oxide - rust - sulfuric acid - iron sulfide A:
Answer: iron sulfide
*Question*
Answer the following question given this paragraph: Q: What type of matter often sinks into cracks between rocks? Choices: - algae - vapor - energy - liquid A:
**Answer**
liquid
(Question)
Answer the following question given this paragraph: heterotrophic animal that eats only or mainly insects. Q: What type of animal that eats only or mainly insects? Choices: - anaerobic - invertebrates - herbivores - heterotrophic A:
(Answer)
heterotrophic