How does physical evidence, such as rock layers, contribute to our understanding of Earth's history? (1 point)

• It helps predict future climate patterns.
C
It provides information about ancient human settlements.
• It reveals the sequence of events that occurred over time.
• It demonstrates the impact of human activities on the environment.

7 answers

It reveals the sequence of events that occurred over time.

Which of the following is a key characteristic of all planets? (1 point)
• They are made up of mostly ice and dust
• They orbit the sun and shine by reflecting light
• They are small rocky objects the burn upon entering Earth's atmosphere
• They have a tail that extends as it moves through space

They orbit the sun and shine by reflecting light.

Which of the following best describes the role of gravity in the formation of planets, stars, and solar systems? (1 point)
• Gravity causes the expansion of the universe.
• Gravity prevents the formation of stars and planets.
Gravity brings together matter, leading to the formation of stars, planets, and solar systems.
• Gravity is not involved in the formation of stars and planets.

Gravity brings together matter, leading to the formation of stars, planets, and solar systems.

Which of the following best explains why the Southern Hemisphere experiences seasons opposite to those in the Northern Hemisphere?
(1 point)
• The tilt of Earth's axis is reversed in the Southern Hemisphere.
• The Southern Hemisphere is closer to the sun during its winter.
• The Southern Hemisphere receives less direct sunlight during its summer.
• The Southern Hemisphere has a longer revolution around the sun.

The Southern Hemisphere receives less direct sunlight during its summer.