Earth's Internal Heat Sources

33問 • 2年前

問題一覧

How did the Earth generate heat on its early stage of formation?

Due to the collision of huge amount of gas and dust particles.

Which among the layers of the earth has the greatest pressure which contributes to the production of the tremendous internal heat?

Inner core has the greatest pressure among the layers of the earth.

Why does Earth’s internal heat builds up due to gravitational pressure?

The amount of heat that can be generated on the earth’s interior is tremendous while lesser amount can escape on the surface.

How did the Earth generate heat on its early stage of formation?

Due to the collision of huge amount of gas and dust particles.

Direct observation is not possible to know all the details about the interior of the earth due to its changing nature of internal composition and tremendous heat that come from its inner most layer. Which of the following will best describe the given sentence?

The statement conveys correct information.

Which of the following sentences about the internal heat of the earth is INCORRECT?

Due to radioactive decay in the center of the Earth, the planet is cooling off.

Which of the following pertains to the process by which gasses and dust of cloud were attracted by gravitational energy 4.6 billion years ago?

Accretion

What do you think will happened to the amount of heat from the outermost layer of the earth down to its core?

As you move from the surface of the earth to the inner core the amount of heat becomes higher.

The heat that flows from the inner most layer makes materials move in the different layers of the Earth. Which of the following best describe the given sentence?

The given statement conveys correct information.

How do radioactive isotopes emit heat energy and contribute to Earth’s internal heat?

Radioactive isotopes releases heat upon undergoing spontaneous radioactive decay.

Why do you think Earth is considered as a thermal engine?

Decay of isotopes contributes to the internal heat of the earth.

Different elements with varying properties comprises the layers of the earth. Which layer of the earth has the highest amount of molten state iron?

The core which is the hot and dense inner most layer of the earth.

Which of the following is the main source of Earth’s internal heat?

Decay of radioactive elements in the core of the earth.

Each layer of the earth has its own distinct features, composition, properties and characteristics. Which among the layers of the earth has the highest temperature?

The core which has decaying isotopes.

The heat __________ from the crust down to the inner core due to several reasons. Which of the following words will best complete the thought of the given statement?

Increases

What process exist as heat is transferred from one plate to another along plate boundaries?

Thermal transfer

How do radioactive isotopes emit heat energy and contribute to Earth’s internal heat?

Radioactive isotopes releases heat upon undergoing spontaneous radioactive decay.

It took a long time for ___________ to move from the internal part of the Earth going to its surface.

heat

There had been ______________ of heat within the core to the mantle of the earth.

convection transport

Earth is considered as ______________ since its main source of internal heat come from the produced decay of some naturally occurring isotopes from its interior.

thermal engine

Radioactive decay emits _____________ that prevents the Earth from completely cooling off.

heat energy

The escape of heat from Earth’s surface is less than the heat generated from internal _____________, so heat builds up with.

gravitational attraction

_______________ under tremendous pressure conditions acquires the property of a solid and is probably in a ____________.

molten materials, plastic state

The ______________ intense pressure prevents the iron and other minimal amount of some elements from ____________.

inner core , melting

The ____________ and density are simply too great for the iron atoms to move into a ____________.

pressure, liquid state

What happens to the temperature as you move from the surface of Earth to its inner most layer?

The temperature increases from the crust down to the core.

As you move from the surface of Earth to the inner core, what happens to the density of the materials of each layer?

Density of the materials increases from the crust to the core.

What prevents the iron and other minimal amount of some elements in the core from melting?

Pressure

How do naturally occurring isotopes play a vital role in the production of earth’s internal heat?

Due to its abundance and emission of heat when it decays.

Which of the following is an isotope that is present in the core of the earth which contributes to immense heat in its interior?

Uranium – 235

Which of the following terms pertains to the spontaneous breakdown of an atomic nucleus which results to the release of energy and matter from the nucleus?

Radioactive decay

What happens to the amount of pressure as you move from the outermost layer of Earth to its inner most layer?

The amount of pressure increases from the crust down to the core.

Why do you think Earth is considered as a thermal engine?

Decay of isotopes contributes to the internal heat of the earth.

Earth's Subsystem

Gwenneth Dalawampu · 13問 · 2年前

Earth's Subsystem