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3 years ago

The concepts of erosion and deposition were developed by: James Hutton Charles Lyell Niels Stensen Leondardo da Vinci

Chemistry

2 answers:

Vesna [10]3 years ago

8 0

James Hutton is the correct answer

DENIUS [597]3 years ago

3 0

Answer:

James Hutton

Explanation:

He was a Scottish geologist, naturalist, physician who contributed on the fundamental principle of geology which came to known as Doctrine of Uniformity, under which he said that the same processes and natural laws which are in operation in our present day observation have always been in operation in the universe since the past.

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What is the balanced chemical equation for wood burning

creativ13 [48]

Answer:

P + O2 --> P2O5

Explanation:

For a simple match burning you can use the following equation: P + O2 --> P2O5 To balance the reaction you have to make sure you have the same amount of each element on both sides.

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3 years ago

You draw back on the piston of a pump and the volume of air in the pump doubles. Which of the following happens?

ohaa [14]

Answer: The correct answer is Option C.

Explanation:

We are given a piston of a pump, which means that there is no loss of the air. and there is a change in pressure and volume but temperature of the system remains constant.

As, the pressure of the system increases, there will be more number of particles. So, the number of collisions per unit area will increase.

$\text{Number of collisions}\propto \text{Pressure}$

But in the question, volume gets doubled. So, the pressure will be determined by using Boyle's Law:

$P\propto \frac{1}{V}$

$V_2\rightarrow 2V_1$

where, $V_1\text{ and }V_2$ are the initial and final volume respectively.

Putting the change in volume in above equation, we get:

$P_2=\frac{1}{2V_1}\\\\P_2=\frac{1}{2}P_1$

where, $P_1\text{ and }P_2$ are the initial and final pressure respectively.

As, the pressure is reduced to half of the initial pressure. So, the number of collisions per unit area will also be reduced to one-half.

Hence, the correct answer is Option C.

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3 years ago

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What unit does a sling psychrometer measure in

Sliva [168]

A sling psychrometer measures humidity

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3 years ago

A covalent compound contains 2 atoms of nitrogen and 4 atoms of oxygen. What is the percent by mass

iogann1982 [59]

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3 years ago

What is (3.2x10^14) x (7.3x10^10)

Molodets [167]

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3 years ago