Answer the following question given this paragraph: Estuaries: Where the Ocean Meets Fresh Water Estuaries are biomes that occur where a river, a source of fresh water, meets the ocean. Therefore, both fresh water and salt water are found in the same vicinity; mixing results in a diluted (brackish) salt water. Estuaries form protected areas where many of the offspring of crustaceans, mollusks, and fish begin their lives. Salinity is an important factor that influences the organisms and the adaptations of the organisms found in estuaries. The salinity of estuaries varies and is based on the rate of flow of its freshwater sources. Once or twice a day, high tides bring salt water into the estuary. Low tides occurring at the same frequency reverse the current of salt water (Figure 20.30). Q: What are biomes that occur where a river, a source of fresh water, meets the ocean called? Choices: - waterways - sediments - rapids - estuaries A:
estuaries
(Question)
Answer the following question given this paragraph: Now the hydrogen atoms need to be balanced. In an acidic medium, add hydrogen ions to balance . In this example, fourteen H + ions will be added to the reactant side. Q: In an acidic medium, add which ions to balance? Choices: - helium - magnesium - calcium - hydrogen A:
(Answer)
hydrogen
Ques: Answer the following question given this paragraph: Population size is the number of individuals in a population. For example, a population of insects might consist of 100 individual insects, or many more. Population size influences the chances of a species surviving or going extinct. Generally, very small populations are at greatest risk of extinction. However, the size of a population may be less important than its density. Q: Population size influences the chances of a species surviving, with very small populations generally at greatest risk of what fate? Choices: - adaptation - accumulation - mutation - extinction A:
Ans: extinction
(Q).
Answer the following question given this paragraph: Like Uranus, Neptune is blue. The blue color is caused by gases in its atmosphere, including methane. Neptune is not a smooth looking ball like Uranus. The planet has a few darker and lighter spots. When Voyager 2 visited Neptune in 1986, there was a large dark-blue spot south of the equator. This spot was called the Great Dark Spot. When the Hubble Space Telescope photographed Neptune in 1994, the Great Dark Spot had disappeared. Another dark spot had appeared north of the equator. Astronomers believe that both of these spots represent gaps in the methane clouds on Neptune. Q: What color is neptune? Choices: - yellow - pink - white - blue A:
(A).
blue
Ques:Answer the following question given this paragraph: Electron dot diagrams can be used to illustrate electron movements and ion formation. Q: What kind of diagrams can be used to illustrate electron movements and ion formation? Choices: - venn diagrams - atomic models - contour maps - electron dot diagrams A:

Ans:electron dot diagrams
Question: Answer the following question given this paragraph: The immune system usually protects you from pathogens and other causes of disease. When the immune system is working properly, it keeps you from getting sick. But the immune system is like any other system of the body. It can break down or develop diseases. Q: What system of the body can specifically protect you from pathogens and other things that might make you ill? Choices: - muscle - cardiovascular - digestion - immune A:
Answer:
immune