1st Semester Final Exam (2024-2025)

Front

What is the name of the large supercontinent where all the continents were joined together?

Back

Pangaea

Front

What is the main component of Earth's current atmosphere?

Back

Nitrogen

Front

How is our sun classified compared to other stars?

Back

Medium size with medium temperature

Front

What celestial bodies are believed to be about the same age?

Back

Earth, Moon, and Asteroids

Front

What percentage of Earth's current atmosphere is nitrogen?

Back

78%

Front

What is the primary gas that makes up the Earth's atmosphere?

Back

Nitrogen

Front

What is the significance of Pangaea in geology?

Back

It represents a time when all continents were connected, influencing plate tectonics.

Front

What is the approximate age of the Earth?

Back

About 4.5 billion years.

Front

What is the composition of Earth's atmosphere?

Back

78% Nitrogen, 21% Oxygen, and trace amounts of other gases.

Front

What is the role of nitrogen in the atmosphere?

Back

It acts as a buffer and is essential for life, being a key component of amino acids.