A tornado watch means a tornado has been reported by a trained spotter or law enforcement or has been indicated by Doppler radar. A tornado warning is an advisory issued when conditions are generally in place for tornadic storms over a period of time.

____________ ocean currents typically travel from the equator towards the poles and generally exist on the east coast of continents.

When designing a visual aid, which of the following is not a principle for designing a visual aid?

Charlene’s speech is laced with words such as we, us, and our. Why is Charlene using these terms?

______________ is a measure of drought that uses precipitation, temperature, and available soil moisture.

An air mass is defined by its _______________ and _______________.

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.