9/11 - Unit 1 Review

What is the fundamental source of energy on Earth?

• The Moon

• The Sun

• The Oceans

• The Wind

What would most likely happen if Earth's tilt were to change significantly?

• The length of a day would increase

• There would be a drastic change in seasons

• The Sun would stop providing energy

• The Moon would become the main energy source

Which of the following best describes how Earth's rotation and orbit around the Sun affect the planet?

• They cause earthquakes

• They influence weather changes that align with the shifting seasons

• They make the Sun move closer to Earth

• They stop the oceans from moving

How does the tilt of the Earth affect the climate?

• It changes the color of the sky

• It affects the intensity and duration of sunlight different parts of the planet receive

• It increases the amount of oxygen in the air

• It causes the Sun to rise in the west

Earth's​ ​ (a)   are affected by the earth's position around the sun, affecting the weather.

• mountains

• earthquakes

• seasons
• oceans

The ______ affects the Earth's climate.

• change in seasons

• day and night cycle

• planting of crops

• ocean currents

Which of the following best describes the overall impact of human activities on the environment, according to the passage?

• They have caused significant environmental degradation.

• They have improved air quality worldwide.

• They have reduced the number of extreme weather events.

• They have restored natural habitats.

Which physical process is primarily responsible for the creation of new islands?

• Erosion

• Plate tectonic movement

• Volcanic eruptions

• Weathering

According to the passage, what is the main effect of erosion on the Earth's surface?

• Creation of new islands

• Formation of mountains

• Wearing down mountains and rocks to create plains

• Causing volcanic eruptions

What percent of Earth's water is salt water?

• 97 percent

• 50 percent

• 10 percent

• 3 percent