What is the source of energy for an earthquake? A.
heat from the asthenosphere







B.
the earth's magnetic field







C.
the building of volcanoes







D.
motion of tectonic plates

Answers

Answer 1
Answer:

The motion of tectonic plates is the source of energy for an earthquake. This implies the correct answer is D.

Earthquakes mostly happen in some regions because, in some cases, the earth’s tectonic plate comes together. Earthquakes take place at the bottom of the ground as a result of the tension and pressure that occur when the earth’s tectonic plates slide past each other or jam each other.

Further Explanation

Earthquake mostly takes place when rock slide past a fault, that is, when there is a break in the Earth’s crust along plate boundaries.

Tectonic plates don’t move very fast, their movement is very slow but if they jam one another, it will result in the building up of tension and pressure on the locked section of the tectonic plates.

In the end, the pressure on the locked section will give in to the increased pressure and make the plates to rapidly move past each other and result in an earthquake.

Earthquakes can as well occur as a result of human activities such as nuclear experiments, mining, etc.

An earthquake can be very dangerous because wherever it happens, it always involves loss of life and property

Therefore, the motion of tectonic plates is the source of energy for an earthquake.

LEARN MORE:

KEYWORDS:

  • earthquakes
  • source of energy
  • tectonics
  • plates
  • nuclear experiment
Answer 2
Answer: I learned this in science a while ago, it's the movement of tetonic plates

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Why should you keep the thermometer in the middle of a jar of water when you are taking the temperature. Why should you not put the thermometer in at the side?

Answers

You put in the middle bucause when you put it on the side it reads the temperature of the glass! 

Hopethis helps
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what is a measure of the amount of matter in an object while what is a measure of the force of gravity acting on an object

Answers

a measure for the amount of matter in an object would be grams or kilograms.
the measure of the force of gravity acting on an object would be newtons.

the amount of matter in an object is called mass.
the force of gravity acting upon an object would be called weight.

What is the percent by mass of chlorine (Cl) in sodium chloride?

Answers

Answer:

60.7 %

Explanation:

just did it on edg

i believe it is 60.663%

What type of rock does preexisting rock become

Answers

Metamorphic rock is a type of rock that the preexisting rock becomes a new rock.
Metamorphism has also different types; the Contact metamorphism and the regional metamorphism. Contact metamorphism happens when magma is mixed with the solid rocks in the surroundings. For example when magma is starting to form igneous rock, it may increase that probability that it will reach the country’s rock and that’s affected the current formation of the rock. Regional metamorphism is also called as dynamic metamorphism. This happens when the pressure from underground makes the rock from above move and change into new rock formation




Clastic because clastic sedimentary rocks are made up of pieces of pre existing rocks

Mass divided by volume is equal to (4 points)weight

size

density

area

Answers

Mass divided by Volume
-----
Density

1.)Which of these is a unit of pressure?I. torr
II. mm of Hg
III. L

I only

I and II

II only

II and III

2.)Decreasing the temperature of a gas will __________.

increase the collision rate between gas particles

decrease the collision rate between gas particles

decrease the amount of gas particles in the gas

not affect the collision rate between gas particles

3.)Which of the following pressures is equal to 2.0 atm?

202.6 Pa

202.6 kPa

202,600 kPa

202,600 Pa

4.)What is the correct calculation when converting 4.1 atmospheres to kilopascals?

5.)Decreasing the temperature of a gas decreases the pressure because __________.

the collision rate between gas particles increases

the collision rate between gas particles decreases

the volume of the gas increases

the amount of gas decreases

6.)Which of these is a unit of pressure?
I. kPa
II. torr
III. g

I only

I and II

II only

II and III

7.)How many millimeters of mercury is 2.64 atmospheres equivalent to?

2.01 x 103 mm Hg

3.47 x 10-3 mm Hg

2.88 x 102 mm Hg

2.64 mm Hg

8.)Which of these quantities are equal to 303,900 Pa? ( multiple answers)

303.9 atm

3.0 atm

44.1 psi

1520 mm Hg

Answers

Answer:

Explanation:

1 ) Which of these is a unit of pressure?

Answer:

Option B = I and II

Torr and mmHg both are units of pressure.

While litter (L) is unit of volume.

Torr:

Torr is the measure of pressure produced by one mmHg equal to the 1/760 of standard pressure used to the pressure of vacuum system.

Millimeter mercury mmHg:

It is the manometric pressure unit. It is defined as, the pressure exerted by column of mercury one millimeter high. it is represented by mmHg.

Torr to mmHg conversion:

Both are equal to each other.

1 torr = 1 mmHg

Torr to atm:

Torr is converted into atm by dividing the torr value 760.

mmHg to atm.

mmHg is converted into atm by dividing the torr value 760.

2) Decreasing the temperature of a gas will....

Answer:

option B = Decrease the collision rate between gas particles

when the temperature of gas is increased the average kinetic energy of gas molecules will increased and gas particles moves fast. Thus because of high velocity gas molecules colloid with each other and also with the wall of container. We can say that collision between gas molecules increased by increasing the temperature. The pressure will also goes to increase.

But when the temperature is decreased the kinetic energy of gas molecules goes to decrease and collision will also decreased because of smaller velocity of gas molecules.

3) Which of the following pressure is equal to 2.0 atm.

Answer:

B) 202.6 KPa

In order to convert the pascal to atm we will divide the given value by 101325.

In order to convert the KPa into atm we will divide the value by 101.325.

A) 202.6 pa

202.6/101325

0.002 atm

B) 202.6 KPa

202.6/101.325

2 atm

C) 202,600 kpa

202,600/101.325

1999.5 atm

D) 202,600 Pa

202,600/101325

1.9995 atm

The option b is correct because 202.6 Kpa is equal to 2.0 atm.

4) What is the correct calculation when converting the 4.1 atm to kilopascal?

Answer:

Kilopascal and atm both are units of pressure. They can be converted into one another.

KPa can be converted into atm by dividing the giving KPa value 101.325.

atm can be converted into KPa by multiplying the given atm value with 101.325.

For example:

4.1 atm × 101.325  kpa/ 1 atm

415.432 atm. kpa / 1atm

415.432 kpa

Kpa to atm:

415.432 kpa/101.325  kpa × 1 atm

4.1 × 1 atm

4.1 atm

5) Decreasing the temperature of gas decreases the pressure because

Answer:

option b= The collision rate between gas particles decreased.

when the temperature of gas is increased the average kinetic energy of gas molecules will increased and gas particles moves fast. Thus because of high velocity gas molecules colloid with each other and also with the wall of container. We can say that collision between gas molecules increased by increasing the temperature. The pressure will also goes to increase.

But when the temperature is decreased the kinetic energy of gas molecules goes to decrease and collision will also decreased because of smaller velocity of gas molecules. Thus slow moving particles exerted low pressure.

Temperature and pressure are also directly related to each other. When temperature is high pressure will also high and when temperature is low pressure will also low.

6) Which of these is a unit of pressure?

KPa

Torr

g

Answer:

option B = I and ii

Explanation:

Kpa and torr both are pressure units.

Gram (g) is the unit of mass.

Torr:

Torr is the measure of pressure produced by one mmHg equal to the 1/760 of standard pressure used to the pressure of vacuum system.

Kilopascal:

The kilopascal is the unit of pressure. It is represented by KPa.

it is the pressure generated by 10 g mass of substance on area of 1 cm².

There are 1000 pascal in one kilopasca.

one atm = 101.325 KPa

one atm = 101325 Pa

7) How many mmHg  is 2.64 atmosphere equivalent to ?

2.01 × 10³ mmHg

3.47 × 10⁻³ mmHg

2.88 × 10² mmHg

2.64 mmHg

Answer:

A) 2.0× 10³ mmHg

Explanation:

Millimeter mercury mmHg:

It is the manometric pressure unit. It is defined as, the pressure exerted by column of mercury one millimeter high. it is represented by mmHg.

mmHg to atm.

mmHg is converted into atm by dividing the torr value 760.

atm to mmHg

atm is converted into mmHg by multiplying the given value with 760.

2.64 atm × 760 mmHg / 1 atm

2006.4 mmHg .atm /1 atm

2.0× 10³ mmHg .atm /1 atm

2.0× 10³ mmHg

8) Which of these quantities are equal to 303900 Pa?

303.9 atm

3.0 atm

44.1 psi

1520 mmHg

Answer:

option b = 3.0 atm

it is almost equal to 303,900 Pa but not exactly. because

3.0 atm = 303975 Pa

Explanation:

A) 1 atm = 101325 Pa

303.9 atm × 101325 Pa / 1 atm

30792667.5 Pa .atm  / 1 atm

30792667.5 Pa

b) 3.0 atm

3.0 atm × 101325 Pa / 1 atm

303975 Pa .atm  / 1 atm

303975 Pa

C) 44.1 Psi

44.1 × 6894.757

304058.8 Pa

D) 1520 mmHg

1520 × 133.322

202650 Pa