Chapter II

Question 1

galaxy in which we live in

Answer 1

milky way

Question 2

sun and the group of bodies that revolve around it

Answer 2

solar system

Question 3

major bodies that obit a star

Answer 3

planets

Question 4

body whose great size attracts other objects through gravity

Answer 4

sun

Question 5

small outer planet that has a rocky core

Answer 5

uranus

Question 6

smaller objects that orbit a planet

Answer 6

moons

Question 7

one of the only two planets in the solar system that does not have a moon

Answer 7

mercury

Question 8

third planet from the sun and the fifth largest of the nine planets

Answer 8

earth

Question 9

type of energy that reaches earth as light and heat

Answer 9

solar energy

Question 10

one complete spin of earth on its axis, which takes 24 hours to complete

Answer 10

rotation

Question 11

a(n) ___ is a group of different parts that interact to form a whole

Answer 11

system

Question 12

geographers divide the earth system into ___ major parts, called spheres

Answer 12

four

Question 13

the envelope of gases that surrounds the earth is called the ___

Answer 13

atmosphere

Question 14

the ___ is the solid crust of the earth, which includes land and soil

Answer 14

lithosphere

Question 15

the hydrosphere, earth’s water covers approximately ___ percent of earth’s regions

Answer 15

70

Question 16

much of earth’s water in the form of ice is locked in ___ in the polar regions

Answer 16

glaciers

Question 17

the ___ is the part of the earth system that includes all life forms, both plants and animals

Answer 17

biosphere

Question 18

the part of the earth system that protects earth from the suns harmful radiation is the

Answer 18

atmosphere

Question 19

earth’s four spheres make up the ___, which includes all the biological, chemical, and physical conditions that interact and affect life

Answer 19

environment

Question 20

individuals and groups sometimes try to influence governmental decisions on environmental issues, a practice called ___

Answer 20

lobbying

Question 21

all of earth’s water

Answer 21

hydrosphere

Question 22

includes land and soil

Answer 22

lithosphere

Question 23

extends from the deep ocean floors to high in the atmosphere

Answer 23

biosphere