Human Impacts flashcard-kl

Front

What percentage of the atmosphere is composed of oxygen?

Back

21% of the atmosphere is composed of oxygen.

Front

Is the atmosphere still changing today?

Back

Yes, the atmosphere is still changing today due to various factors including human activities.

Front

The solar energy entering Earth's atmosphere equals the amount of energy that is _____ .

Back

The solar energy entering Earth's atmosphere equals the amount of energy that is absorbed, reflected, and retained.

Front

Fill in the blank: ________ is one of the main greenhouse gases.

Back

Methane is one of the main greenhouse gases.

Front

What is the main focus of the learning material in the image?

Back

The main focus of the learning material is Earth's atmosphere.

Front

Define greenhouse gases.

Back

Greenhouse gases are gases that trap heat in the atmosphere, contributing to the greenhouse effect.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases in the Earth's atmosphere trap heat, keeping the planet warm.

Front

Name three major greenhouse gases.

Back

Three major greenhouse gases are carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).

Front

What human activities contribute to the increase of greenhouse gases?

Back

Human activities such as burning fossil fuels, deforestation, and industrial processes contribute to the increase of greenhouse gases.

Front

What is the role of the atmosphere in Earth's climate system?

Back

The atmosphere plays a crucial role in regulating Earth's climate by distributing heat and moisture around the planet.