Earth Sustainability Pre-Test

Front

What is the gas that is required for the life of most creatures?

Back

Oxygen

Front

What are the essential ingredients needed to live on Earth?

Back

Oxygen, water, light/energy

Front

If the sun were larger, what would most likely have to be true for Earth to sustain life?

Back

Earth would have to be further from the sun.

Front

What is the most necessary condition for life to develop on another planet?

Back

Liquid water.

Front

What does the word 'abundance' mean in the context of an atmosphere containing oxygen?

Back

A lot of.

Front

What is the role of liquid water in sustaining life on Earth?

Back

Liquid water is essential for all known forms of life as it is a solvent for biochemical reactions.

Front

How does Earth's distance from the sun affect its ability to support life?

Back

Earth's distance allows for a suitable temperature range for liquid water to exist.

Front

What are the three main components needed for photosynthesis?

Back

Carbon dioxide, water, and sunlight.

Front

Why is oxygen important for living organisms?

Back

Oxygen is required for cellular respiration, which produces energy.

Front

What is the significance of the atmosphere in supporting life on Earth?

Back

The atmosphere provides essential gases, protects from harmful radiation, and regulates temperature.