D1.1

Question 1

Atmosphere

Answer 1

the layer of gases that surround Earth

Question 2

Biosphere

Answer 2

a relatively thin layer of Earth that has conditions suitable for life

Question 2

Atmospheric Dust

Answer 2

tiny, solid particles suspended in the atmosphere

Question 3

Climate

Answer 3

the average weather conditions that occur in a region over a long period of time

Question 4

Hydrosphere

Answer 4

the water on Earth, whether present as liquid, water vapour, or ice

Question 5

Inversion

Answer 5

a reversal of normal temperature patterns seen in the troposphere In an inversion, there is an increase of temperature with height through a layer of air

Question 6

Lithosphere

Answer 6

lithosphere: the solid outer portion of Earth, composed of rocks, minerals, and elements

Question 7

Mesosphere

Answer 7

the atmospheric layer above the stratosphere, from 50 km to 80 km above Earth’s surface

Question 8

Ozone

Answer 8

a molecule composed of three atoms of oxygen

Question 9

Ozone layer

Answer 9

a layer in the stratosphere containing high levels of ozone gas

Question 10

Ozone gas

Answer 10

absorbs large amounts of energy from the sun rays, which causes the temperature in the stratosphere to increase with altitude - protects living organisms from damaging high energy radiation

Question 11

stratosphere

Answer 11

the atmospheric layer above the troposphere, from 10 km to 50 km above Earth’s surface

Question 12

Troposphere

Answer 12

troposphere: the atmospheric layer from 0 km to 10 km above Earth’s surface

Question 13

Weather

Answer 13

weather: the state of the atmosphere at a particular place and time with regard to temperature, air pressure, cloud cover, precipitation, and humidity

Question 14

Thermosphere

Answer 14

the highest atmospheric layer, from 80 km to 300 km above Earth’s surface