UNIT 3 "The Atmosphere"

UNIT 3 : The Atmosphere

and its environmental impacts

Formation of the atmosphere

atmosphere: atmósfera

outer layer: capa externa

aire: aire

mixture: mezcla

Nitrogen: nitrógeno

oxygen : Oxígeno

Carbon dioxide: dióxido de carbono

methane: metano

hydrogen: hidrógeno

living beings: seres vivos

photosynthesis: fotosíntesis

Fill in the Blanks

Which is the closest atmosphere's layer to the Earth?

Fill in the Blanks

Which is the farthest atmosphere's layer to the Earth?

Fill in the Blanks

Which layer reflects the radio and television waves back to the Earth?

Fill in the Blanks

Where do the meteorological phenomena take place?

Fill in the Blanks

Where is the ultraviolet radiation absorbed?

Fill in the Blanks

Where is the infrared radiation absorbed?

Multiple Choice

The atmosphere is the gaseous layer that surrounds planet Earth.

• TRUE

• FALSE

Multiple Choice

What we call “air” is a mixture of gases.

• TRUE

• FALSE

Multiple Choice

Earth’s atmosphere started to form 6,000 million years ago, as the planet cooled down.

• TRUE

• FALSE

Multiple Choice

Earth’s first atmosphere was rich in carbon monoxide, nitrogen, water vapour and other gases.

• TRUE

• FALSE

Multiple Choice

Oxygen came later, produced by the cellular respiration carried out by cyanobacteria.

• TRUE

• FALSE

Multiple Choice

Thanks to the increase in oxygen, the ozone layer was destroyed.

• TRUE

• FALSE

Air characteristics and composition

SMARTBOOK

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