Geography Chapter 2

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The Moon orbits Earth every
29 1/2 days
Most stars are grouped together in huge bodies called
galaxies
Which area of Earth receives the most solar energy?
the tropics
Which of the following planets is not terrestrial?
Saturn
Which of the following planets does not have an atmosphere or lithosphere?
Mercury
When does the fall equinox occur in the Northern Hemisphere?
September 21
Planets are major bodies that orbit a
star
The shape of Earth’s orbit is
elliptical
Earth’s atmosphere is composed of about 78% of what gas?
nitrogen
Which planet has more moons than Earth?
Saturn
Which planet is not gaseous?
Mars
Which of the following is not a satellite?
Sun
What causes the tides on Earth?
the gravitational pull of the Sun, Earth, and Moon
How many days are in a leap year?
366
On which days does the Sun never set on the Arctic Circle?
June 21
The outermost sphere of Earth
atmosphere
There are equal periods of daylight and darkness
equinox
Together, the four spheres of Earth make up the
Earth environment
What is at the center of the solar system?
Sun
In which direction does Earth rotate?
west-to-east
major bodies that orbit a star
planets
time at which Earth’s poles point at the greatest angle away or toward the Sun
solstice
a group of different parts that interact to form a whole
system
one elliptical orbit of Earth around the Sun
revolution
the part of Earth that includes all life
biosphere
occurs when both hemispheres receive an equal amount of sunlight
equinox
smaller objects that orbit a planet
moons
all of Earth’s water
hydrosphere
warm low-latitude areas near the equator
tropics
the envelope of gases that surround Earth
atmosphere
How is Earth’s environment unique in the solar system?
It has an atmosphere than can support human life
What are the main bodies that make up the solar system?
the Sun, the 9 planets, asteroids, and comets
What is Earth;s position within the solar system.
third planet from the Sun
Why do direct vertical rays rom the Sun heat the Earth’s surface more than angled rays?
The amount of solar energy in direct rays is concentrated on a smaller area and emit more solar energy
How do the sizes of the planets compare to that of the Sun?
The Sun is about 100 times the size of the Earth
The universe is made up of all existing things, including the solar system. true or false
True
The North Pole always points toward the Sun. true or false
False, the North Star
The biosphere protects Earth from harmful radiation. true or false
False, atmosphere
The outer planets are terrestrial in composition. true or false
False, gaseous
The hydrosphere affects the lithosphere when it rains.
True
The Sun’s gravity holds the atmosphere in place around the Earth. true or false
False, Earth’s
No other planet in our solar system has an environment as complex as Earth’s. true or false
True
The Sun is a large star on the edge of the Milky Way. true or false
False, average
The Antarctic Circle is located at the parallel 66 1/2 degrees south of the equator. true or false
True
Moons are natural satellites. true or false
True