Definitions
True or False
Fill in the blank
100

The layers of gases surrounding the Earth.

Atmosphere

100

Light and Noise are the main types of energy that pollute the atmosphere.

True

100

___ is composed primarily of nitrogen, oxygen, carbon dioxide, water vapour and small quantities of many othe gases.

Air

200

The physical process by which a liquid slowly and gradually becomes a gas, requiring energy to do so. 

Evaporation

200

The troposphere contains the ozone layer, also called the ozonosphere. 

False

200

The ____ lies between altitudes of 80km and 500km. This layer filters out the most harmful radiation from the Sun.

Thermosphere.

300
The layer of the Earth formed of oceans, seas, rivers, lakes, and other bodies and currents of water. 

Hydrosphere

300

Most climate change occurs because clouds absorb too much sunlight, not because of greenhouse gas emissions.

False.

300

We cannot discharge ____ into the natural environment first we must treat it to remove the pollutants that are dissolved in it.

wastewater

400

The process by which the materials that form the Earth's crust wear away due to agents like rain and wind.

Erosion

400

The Intergovernmental Panel on Climate Change (IPCC) was created to promote space exploration rather than study climate issues.

False.

400

___ is one of the few substances that we can naturally find in the three states of matter.

Water

500

The process by which water from precipitation and melting seeps into the soil, adding to groundwater.

Hydrosphere

500

In Spain, it is estimated that more than 80% of glaciers in the Pyrenees have melted, and, if things continue as they are, they will disappear by 2025

True

500

Seas and oceans account for __% of the Earth's water; in other words, they are the planet's main water deposits.

97%

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