Answer the following question given this paragraph: The oceans are most polluted along coasts. Why do you think that's the case? Of course, it's because most pollution enters the oceans from the land. Runoff and rivers carry the majority of pollution into the ocean. Many cities dump their wastewater , water mixed with waste, directly into coastal waters. In some parts of the world, raw sewage and trash may be thrown into the water ( Figure below ). Coastal water may become so polluted that people get sick if they swim in it or eat seafood from it. The polluted water may also kill fish and other ocean life. Q: Where are the oceans most polluted? Choices: - in warmer waters - on the ocean floor - along reefs - along coasts A:
along coasts
Answer the following question given this paragraph: Courtship behaviors occur in many other species. For example, males in some species of whales have special mating songs to attract females as mates. Frogs croak for the same reason. Male deer clash antlers to court females. Male jumping spiders jump from side to side to attract mates. Q: What type of behavior is frogs croaking or deer clashing antlers an example of? Choices: - instincts - learned behavior - mating - courtship A:
courtship
Q: Answer the following question given this paragraph: Hydrocarbons are compounds that contain only carbon and hydrogen. Hydrocarbons are the simplest type of carbon-based compounds. Nonetheless, they can vary greatly in size. The smallest hydrocarbons have just one or two carbon atoms, but large hydrocarbons may have hundreds. The size of hydrocarbon molecules influences their properties. For example, it influences their boiling and melting points. As a result, some hydrocarbons are gases at room temperature, while others are liquids or solids. Hydrocarbons are generally nonpolar and do not dissolve in water. In fact, they tend to repel water. That's why they are used in floor wax and similar products. Q: What is the simplest type of carbon-based compounds? Choices: - Buckminsterfullerine - graphite - particles - hydrocarbons A:
A: hydrocarbons
Question: Answer the following question given this paragraph: Earth science includes many fields of science related to our home planet. Q: What science includes many fields of science related to our home planet? Choices: - meteorology - zoology - biology - earth science A:
Answer: earth science
*Question*
Answer the following question given this paragraph: Variation in muscle cells gives further insight into some benefits of anaerobic respiration. In vertebrate muscles, lactic acid fermentation allows muscles to produce ATP quickly during short bursts of strenuous activity. Muscle cells specialized for this type of activity show differences in structure as well as chemistry. Red muscle fibers are "dark" because they have a rich blood supply for a steady supply of oxygen, and a protein, myoglobin, which holds extra oxygen. They also contain more mitochondria, the organelle in which the Krebs cycle and electron transport chain conclude aerobic respiration. This is endurance muscle. White muscle cells are "light" because they lack the rich blood supply, have fewer mitochondria, and store the carbohydrate glycogen rather than oxygen. This is muscle built for sprinting. Q: Variation in muscle cells gives further insight into some benefits of what type of respiration? Choices: - natural - enzymatic - aerobic - anaerobic A:
**Answer**
anaerobic
(Q).
Answer the following question given this paragraph: Mechanical weathering breaks rock into smaller pieces. These smaller pieces are just like the bigger rock; they're just smaller! The rock has broken without changing its composition. The smaller pieces have the same minerals in the same proportions. You could use the expression "a chip off the old block" to describe mechanical weathering! The main agents of mechanical weathering are water, ice, and wind. Q: What type of weathering breaks rock into smaller pieces? Choices: - fluid weathering - chemical erosion - chemical weathering - mechanical weathering A:
(A).
mechanical weathering