Choose the correct answer. Earth’s temperatures are stable because we are surrounded by ________ which allows the right amount of sunlight in to warm the Earth.

Choose the correct answer. This layer keeps us “not too hot in the summer” and “not too cold in the winter.” Scientists call this the ________ .

Choose the correct answer. Certain gases in the atmosphere: water vapour, carbon dioxide, methane and nitrous oxide help maintain the Earth’s temperatures and climate. These are called __________ .

Choose the correct answer.The solar energy that warms the Earth includes visible light, infrared and _____coming from the sun.

Choose the correct answer. The solar radiation that bounces off the Earth back toward the atmosphere is mostly _____ (with a longer wavelength).

Choose the correct answer. The layer of the atmosphere closest to the Earth is called the _____________.

Choose the correct answer. How are we making greenhouse gases of our own?

Choose the correct answer. Too many greenhouse gasses in the atmosphere may block heat from escaping into space and trap too much heat next to the Earth’s surface causing ____________.

Choose the correct answer. Something that might happen because of global warming is __________.

Choose the correct answer. To decrease global warming you should ________.

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