(Q).
Q: What is formed when atoms of different elements combine in a chemical reaction? Read this paragraph and choose the correct option from the provided answers: For each of the following situations, tell whether the rate of the reaction would increase or decrease, and explain your answer in terms of collision theory. The concentration of a reactant is doubled. Choices: - crystals - dust - toxins - compounds A:
(A).
compounds

(Q).
Q: What color is neptune? Read this paragraph and choose the correct option from the provided answers: 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. Choices: - yellow - pink - white - blue A:
(A).
blue

(Q).
Q: What historical event taught people that soil could be lost by plowing and growing crops and encouraged new methods to prevent erosion? Read this paragraph and choose the correct option from the provided answers: The Dust Bowl taught people that soil could be lost by plowing and growing crops. This led to the development of new ways of farming that help protect the soil. Some of the methods are described in Figure below . Choices: - the debris bowl - the flow bowl - the land bowl - the dust bowl A:
(A).
the dust bowl