Section 2: Earth and Space

Question 1

What is the lithosphere?

Answer 1

all the soils and rock on Earth

Question 2

What is the hydrosphere?

Answer 2

all water on Earth including the cryosphere

Question 3

Salinity

Answer 3

the amount of salt in a liquid

Question 4

ocean current

Answer 4

movement of seawater in a certain direction

Question 5

ocean circulation

Answer 5

combined effect of all the currents that move across the ocean

Question 6

cryosphere

Answer 6

frozen material on Earth

Question 7

Pack Ice

Answer 7

ice floating on oceans

Question 8

glacier

Answer 8

mass of ice on land formed by compressed snow

Question 9

Hydraulic Energy

Answer 9

energy that can be derived from moving water

Question 10

Hydroelectic Dam

Answer 10

converts a river’s water energy into electrical power

Question 11

atmosphere

Answer 11

layer of air surrounding the Earth

Question 12

Greenhouse effect

Answer 12

Earth retaining heat in the atmosphere

Question 13

climate change

Answer 13

abnormal modification of climatic conditions on Earth caused by CO2, methane CH4, nitrous oxide N2O

Question 14

Acid Rain

Answer 14

acidic rain due to SO2 and NOx

Question 15

biosphere

Answer 15

layer around the earth that contains all of the living organisms

Question 16

Do the following things take in or release carbon? photosynthesis

Answer 16

takes in