The IPCC does not develop official policy recommendations.

____________ radiation comes from the Sun.

Match each layered atmospheric structure to the corresponding letter on the figure below.

_____________ refers to a reduction in the pH of the ocean over an extended period of time and is primarily caused by uptake of carbon dioxide from the atmosphere.

What type of front is characterized by a warm air mass pushing into a cooler air mass?

_____________ a persistent non-frontal system of organized convection forming over the tropical or subtropical ocean.

In the United States, warning agencies use a ______ – minute average wind speed to determine the intensity of a hurricane.

Which of the following generally decreases with height in the atmosphere?

A _____________ is a tropical cyclone that has a maximum 1-minute sustained wind of greater than 34 knots but less than 64 knots.

What is the average weather condition for a location over an extended period of time?