Front

What will most likely result from a low-pressure weather system? Options: warm temperatures, cloudy conditions, clear conditions, cool temperatures

Back

cloudy conditions

Front

What is the best explanation for how air masses move across the United States?

Back

The prevailing westerlies move air masses from west to east across the United States but may be deflected by the jet stream.

Front

What is the cause of rising surface temperatures of the Pacific Ocean, drought in the western United States, and flooding on the Pacific coast of South America? Options: the Gulf Stream, the jet stream, El Nino, La Nina

Back

El Nino

Front

Which has the greatest effect on wind speed? Options: precipitation, cloud cover, wind direction, air pressure

Back

air pressure

Front

Weather conditions a high-pressure system most likely brings on a cold, cloudy day.

Back

sunny

Front

In a grassland ecosystem, if the population of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem? Options: The ecosystem will become overpopulated with snakes., There will be a decrease in the population of snakes in the ecosystem., The nutrition of the soil in the ecosystem will decrease, More types of plants will begin growing in the ecosystem.

Back

The ecosystem will become overpopulated with snakes.

Front

Which gets all its energy from the sun? Options: consumer, producer, decomposer, no living organism

Back

producer

Front

How are lakes and estuaries similar?

Back

They both have freshwater.

Front

How are the tropical rain forest and pond ecosystems similar?

Back

They both have producers and consumers.

Front

Which ecosystem would most likely contain fish that can only survive in freshwater? Options: lake, estuary, ocean, outer space

Back

lake