Question: Which Crust Do We Live On?

What term best describes the layer on Earth that we live on?

The troposphere, the lowest level of the atmosphere, is where humans live and where all weather occurs.

The next level, going away from earth, is the stratosphere, where planes fly.

The next level is the mesosphere.

The mesosphere is the coldest layer of the atmosphere..

What are earth’s layers?

Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust. Except for the crust, no one has ever explored these layers in person.

Is the crust the coldest layer of the earth?

The Crust is the most outer layer of the Earth. … The crust is divided into continental, which drift slowly every year. Under the ocean it is about 3.7 km deep and under the land it is about 25-90 km thick. The crust is the coolest because it’s the farthest from the inner core.

Do humans live on the earth’s crust?

Humans live in the biosphere, anywhere on Earth that there is life. … In relation to the structure of the Earth which contains the outer crust, the mantle, the outer and inner cores, life is found at the lithosphere, which is the uppermost mantle together with the crust.

What is the coldest layer?

However, polar stratospheric or nacreous clouds are occasionally seen in the lower part of this layer of the atmosphere where the air is coldest. The stratosphere is the highest layer that can be accessed by jet-powered aircraft.

What is the deepest natural hole in the world?

Dean’s Blue HoleAt more than 650 feet deep, Dean’s Blue Hole is the world’s deepest sinkhole with an entrance below water. Located in a bay west of Clarence Town on the Bahamas’ Long Island, its visible diameter is roughly 82–115 feet.

Has anyone ever dug into mantle?

(CNN) Humans have been to the moon and explored almost every corner of the planet — but there’s one place they have never been. An international group of scientists say they plan to be the first group to drill successfully into the Earth’s mantle, the planet’s interior, which lies just beneath the outer crust.

How deep have we drilled into the earth?

Known as the Kola Superdeep Borehole, the deepest hole ever dug reaches approximately 7.5 miles below the Earth’s surface (or 12,262 kilometers), a depth that took about 20 years to reach.

Which is the hottest layer of the earth?

inner coreAnswer and Explanation: The hottest layer of the Earth is its innermost layer, the inner core. Quite literally the center of the Earth, the inner core is solid and can get to…

What are 5 facts about the core?

5 Facts About the Earth’s Inner CoreIt’s Almost The Size of the Moon. The Earth’s inner core is surprisingly large, measuring 2,440 km (1,516 miles) across. … It’s Hot…Really Hot. … It’s Mostly Made of Iron. … It Spins Faster Than the Surface of the Earth. … It Creates a Magnetic Field.

Why do planes fly in the stratosphere?

Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry; air there contains little water vapor. Because of this, few clouds are found in this layer; almost all clouds occur in the lower, more humid troposphere.

What layer of the earth are we standing on?

crustThe top layer, which is what we stand on is the crust, next comes the mantle and finally the core. Some of these layers are made up of even more layers and they’re always on the move. The Earth is mostly made of rock and metal.

How far is the core from the crust?

The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle. The core is found about 2,900 kilometers (1,802 miles) below Earth’s surface, and has a radius of about 3,485 kilometers (2,165 miles).

What is Earth’s core made of?

The inner core is a solid sphere made of iron and nickel metals about 759 miles (1,221 kilometers) in radius.