Answer:
Answer choice B.
Explanation:
Comets are usually made up of ice, dust, and gas, meaning that options A and D are wrong. Also, as a comet approaches the sun, its particles heat up so quickly that they don't have time to become liquid; they turn straight from solid to gas. This makes them very visible when they come near the sun. Therefore, the correct answer is B. Hope this helps!
The following are the two conclusions that Morgan made about qualities and chromosomes:
1: Each chromosome is really a gathering of connected qualities.
2: Mendel's standard of autonomous combination still remains constant.
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Answer:
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Answer:
Industrial smog results from the combustion of fossil fuels and photochemical smog forms when sunlight drives chemical reactions between primary pollutants and atmospheric compounds.
Answer: the resilience of the pond ecosystem to different types of changes
Explanation: