3 years ago

In the United States, most of our energy comes from this non–renewable resource, which has a negative effect on the environment.

1 answer:

8 0

All of them have a negative effect on the environment.
But your answer would be Natural Gas being the leading source of energy in the US by 31% overall.

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Answer:

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Explanation:

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3 years ago

How far does a boat travel in 5 hours at 32 miles per hour? 162 mi 160 mi 210 mi

sleet_krkn [62]

We know that:
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3 years ago

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A kettle of water contains 1.2 kg of water. Calculate how much energy is required to hear it from water at 10 degrees to its boi

Darya [45]

Answer:

450 kJ

Explanation:

Q = mCΔT

where Q is heat (energy),

m is mass,

C is specific heat capacity,

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3 years ago

In a typically constructed research study, the experimental group is selected:

blondinia [14]

Answer:

D. from a separate pool than is the control group.

Explanation:

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2 years ago

1. Define friction. Name and describe two kinds of friction.

jeka57 [31]

Answer:

Friction is a force that holds back the movement of a sliding object.

Explanation:

The two types of friction: Static friction and Kinetic friction. Static friction operates between two surfaces that aren't moving relative to each other, while kinetic friction acts between objects in motion.

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3 years ago