27. a rock inside a building is not likely to be affected by (2 points) chemical weathering any of these biological weathering mechanical weathering 28. fertilizers can put extra nitrogen into coastal waters, which can cause (2 points) overgrowth of algae that produce toxins too many fish which depletes oxygen a change in the water's temperature the water to become too salty 29. name and describe two types of mechanical weathering. (4 points) writing part 30.if scientists determine the age of a rock to be three billion years old, what else do they know? (2 points) the rock came from outside the solar system the rock was part of a comet the earth is at least three billion years old the earth is younger than three billion years old
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Chemistry, 21.06.2019 23:00
City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.
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Chemistry, 22.06.2019 14:30
Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2:
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Chemistry, 22.06.2019 15:00
20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?
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27. a rock inside a building is not likely to be affected by (2 points) chemical weathering any of t...
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