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3 years ago

Fossil fuels, such as coal, are formed through deposition of BLANK rocks

Physics

2 answers:

love history [14]3 years ago

6 0

Answer:

The correct answer is organic sedimentary rocks.

Explanation:

Sedimentary rocks are the type of rock formed by the deposition of the smaller sediments due to wind, gravity and other natural factors.

The sedimentary rocks are divided into three types on the basis of their sediment material: chemical sedimentary rocks, clastic sedimentary rocks and organic sedimentary rocks.

Coal is formed by the accumulation of dead and decayed parts of plants and animals which is why they are called organic sedimentary rocks which takes millions of years to form.

Thus, organic sedimentary rocks are the correct answer.

mamaluj [8]3 years ago

5 0

It would be sedimentary rocks

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When a plant is entering the calvin cycle of photosythesis______.

Korolek [52]

The Calvin cycle refers to the light-independent reactions in photosynthesis that take place in three key steps. Although the Calvin Cycle is not directly dependent on light, it is indirectly dependent on light since the necessary energy carriers (ATP and NADPH) are products of light-dependent reactions.

So basically it indirectly needs the light, even it's called light-independant reaction.

So the answer is the last one.

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4 years ago

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6. The four main systems of the Earth are

nevsk [136]

Geosphere, hydrosphere, atmosphere, and biosphere.

Therefore, the correct answer is D.

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3 years ago

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The amount of work done by two boys who apply 200 N of force in an

Aleksandr [31]

The amount of work done by two boys who apply 200 N of force in an unsuccessful attempt to move a stalled car is 0.

Answer: Option B

Explanation:

Work done is the measure of work done by someone to push an object from its present position. We can also define work done as the amount of forces needed to move an object from its present position to another position. So the amount of work done is directly proportionate to the product of forces acting on the object and the displacement of the object.

$\text { Work done }=\text { Force } \times \text { displacement }$

So in this present case, as the two boys have done an unsuccessful attempts to push a stalled car so that means the displacement of the car is zero as there is no change in the position of the car. But they have applied a force of 200 N each. So the amount of work done will be

$\text { Work done }=200 \mathrm{N} \times 0=0$

Thus, the amount of work done by two boys will be zero due to their unsuccessful attempt to move a stalled car.

8 0

3 years ago

Mastering Problems

lesya692 [45]

Answer:

C , E , A , D , B

Explanation:

We evaluate the accelerations for each case, using the formula: a = (vf - vi) / t

A) a = (10.3 - 0.5 ) / 1 = 9.8 m/s^2 --> magnitude: 9.8 m/s^2

B) a = (0 - 20) / 1 = - 20 m/s^2 --> magnitude : 20 m/s^2

C) a = (0.02 - 0.004) / 1 = 0.016 m/s^2 --> magnitude : 0.016 m/s^2

D) a = (4.3 - 0) / 0.4 = 10.75 m/s^2 --> magnitude : 10.75 m/s^2

E) a = (1 - 2) / 8.3 = - 0.12 m/s^2 --> magnitude: 0.12 m/s^2

Then, comparing magnitudes from least to greatest:

C , E , A , D , B

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3 years ago

When air pressure increases the liquid in a mercury barometer?

MrMuchimi

It forces the mercury to rise, being pushed up the tube by pressing down on the dish.

I hope I could help :)

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4 years ago

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