___ % of all solar radiation is reflected back to space.

The largest amount of solar radiation being reflected back into space is caused by ___________.

Without greenhouse gases in our atmosphere, Earth would

What are the two gases which are primarily responsible for the greenhouse effect?

Which of the following atmospheric gases absorbs heat radiated back from the Earth's surface?

What type of radiation is emitted from the Earth's surface, absorbed by gases in the atmosphere and causes the greenhouse effect?

What type of pressure is associated with clear skies and fair weather?

Which two gases are the most common components of Earth's atmosphere?

The temperature on the bottom layer of Earth's atmosphere decreases with an increase in altitude. What is the bottom layer called?

When solar energy is absorbed by gas atoms and molecules in the air, those particles _____ and air temperature rises.

How is energy transferred with ocean currents?

Human activities have an effect on the concentration of all of the following atmospheric gases EXCEPT __________.

The image represents the mechanism of the greenhouse effect. Which of these options would BEST be used to fill in step 1 of the diagram?

Increased global temperatures have been attributed to increased levels of carbon dioxide in the atmosphere. All of the following lead to an increased amount of carbon dioxide entering the atmosphere except

During the carbon cycle, which of the following carbon-based molecules are released into the atmosphere through respiration?

With the carbon cycle, which of the following would NOT be a carbon reservoir?

In various physical and chemical forms, carbon cycles through different reservoirs on Earth. In which reservoir does carbon primarily appear as carbon dioxide gas?

The layer of Earth's atmosphere where all of the weather occurs is the

Which layer of Earth's atmosphere contains the ozone layer?