The present day atmosphere

Last updated about 2 hours ago

10 questions

The present day earth

1

3

1

Library

The present day atmosphere

Last updated about 2 hours ago

10 questions

The present day earth

1

3

Who is your teacher?

The diagram shows the three main layers of the Earth.

9.1 The middle layer is called the...

A. crust.

B. mantle.

C. magma.

The inner part of the inner layer (core) is...

A. liquid and made from aluminium and silicon.

B. liquid and made from iron and nickel.

C. solid and made from aluminium and silicon.

D. solid and made from iron and nickel.

The mean (average) density of the rocks in the Earth's crust is 2.8 grams per cm³. The overall density of the Earth is 5.5 grams per cm³. This suggests that:

A. Material in the Earth's interior is more dense than the crust.

B. Sedimentary rocks are more dense than metamorphic rocks.

C. The density of rocks decreases with increased depth.

D. The rocks of the crust are more dense than the material in the interior.

You need to have a sketch of this in your notes.

The present-day atmosphere is made up mainly of:

A. Carbon dioxide and nitrogen

B. Carbon dioxide and oxygen

C. Hydrogen and oxygen

D. Nitrogen and oxygen

10.4 In the present-day atmosphere, the proportions of oxygen and nitrogen are:

A.

B.

C.

D.

Identify gas Z

Match the gas to its approximate percentage in Earth's modern atmosphere.

Draggable item		Corresponding Item
Nitrogen		21%
Carbon dioxide		0.93%
Argon		78%
Oxygen		0.03

Planet

A

B

C

D

Who is your teacher?

MG

PXH

BVT

PWE

HMM

The diagram shows the three main layers of the Earth.

9.1 The middle layer is called the...

A. crust.

B. mantle.

C. magma.

The inner part of the inner layer (core) is...

A. liquid and made from aluminium and silicon.

B. liquid and made from iron and nickel.

C. solid and made from aluminium and silicon.

D. solid and made from iron and nickel.

The mean (average) density of the rocks in the Earth's crust is 2.8 grams per cm³. The overall density of the Earth is 5.5 grams per cm³. This suggests that:

A. Material in the Earth's interior is more dense than the crust.

B. Sedimentary rocks are more dense than metamorphic rocks.

C. The density of rocks decreases with increased depth.

D. The rocks of the crust are more dense than the material in the interior.

You need to have a sketch of this in your notes.

O2 21%

Ar and other gases (0.03%CO2)

N2 79%

The present-day atmosphere is made up mainly of:

A. Carbon dioxide and nitrogen

B. Carbon dioxide and oxygen

C. Hydrogen and oxygen

D. Nitrogen and oxygen

10.4 In the present-day atmosphere, the proportions of oxygen and nitrogen are:

A.

B.

C.

D.

Identify gas Z

N

N₂

CO₂

O₂

Ar

Match the gas to its approximate percentage in Earth's modern atmosphere.

Nitrogen

21%

Carbon dioxide

0.93%

Argon

78%

Oxygen

0.03

Planet

A

B

C

D

The present day atmosphere

The present day atmosphere

Who is your teacher?

The diagram shows the three main layers of the Earth. 9.1 The middle layer is called the...

The inner part of the inner layer (core) is...

The mean (average) density of the rocks in the Earth's crust is 2.8 grams per cm³. The overall density of the Earth is 5.5 grams per cm³. This suggests that:

O2 21%

Ar and other gases (0.03%CO2)

N2 79%

The present-day atmosphere is made up mainly of:

10.4 In the present-day atmosphere, the proportions of oxygen and nitrogen are:

Identify gas Z

Match the gas to its approximate percentage in Earth's modern atmosphere.

Planet

O2 21%

Ar and other gases (0.03%CO2)

N2 79%

The diagram shows the three main layers of the Earth.

9.1 The middle layer is called the...