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Aleonysh [2.5K]
3 years ago
11

This example of sedimentary rock is formed when rock fragments, minerals, and the remains of plants and animals are deposited as

sediments and are then
A) chemically weathered by water.
B) compacted and cemented together.
C) recrystalized under the weight of the layers.
D) melted due to increased temperature and pressure.
Biology
2 answers:
Gala2k [10]3 years ago
8 0

Answer: B) compacted and cemented together

Explanation:

shutvik [7]3 years ago
7 0

B) compacted and cemented together

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Brilliant_brown [7]

Answer:

0 = -2, hence no solution.

Explanation:

4x + 2(x-5) = 3(2x-4)

4x + 2x - 10 = 6x - 12

     6x - 6x = -12 + 10

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Answer is b. Burning fossil fuels causes a decrease in the pH of ocean water making it more acidic.

Burning of fossil fuels release carbon dioxide and other harmful gases in the atmosphere. Carbon dioxide gets dissolves in the ocean to form carbonic acid.  Due to formation carbonic acid, the pH of ocean water changes slightly. The average pH of ocean water was 8.2 slightly basic. Now it 8.1, it means there is 25 % increase in acidity of ocean water.  

5 0
3 years ago
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4. If index of refraction 1 is 1.5, index of refraction 2 is 2.0, and the angle of incidence is 45 degrees, what is the angle of
motikmotik

Answer: The angle of refraction is 32°

Explanation:

By snell law, we have that:

n₁*sen(θ₁) = n₂*sen(θ₂)

Where n₁ = 1.5

n₂ = 2.0

θ₁ = 45°.

then we want to find the angle of refraction.

1.5*sin(45°) = 2*sin(x)

x = Asin(1.5*sin(45°)/2) = 32°

7 0
3 years ago
Which of the following best describes a DNA molecule
brilliants [131]

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A. double helix.

Explanation:

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What does the Miller-Urey experiment tell us about the origin of life?
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B inorganic materials can form organic molecules under the right conditions

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