The map above is used to predict the weather for Tuesday. Which city MOST likely will be clear and dry?

• Alexandria

• Shreveport

• New Orleans

• Lake Charles

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Weather

Which best explains how clouds are classified?

• by the elevation at which they are found

• by the amount of dust particles in the cloud

• by the temperature at which the cloud formed

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Weather

The weather forecast indicates that a warm front will be moving into the area in the next 24 hours. Which type of weather will most likely result?

• clear skies and cold temperatures

• clear skies and hot temperatures

• cloudy skies and rainy weather

• heavy snow and ice

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Weather

The chance of precipitation for two cities is shown above.

Which day will people in both cities MOST likely see rain?

• Monday

• Tuesday

• Wednesday

• Thursday

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Weather

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?

• the Gulf Stream

• the jet stream

• La Niña

• El Niño

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Weather

Why do most amphibians lay their eggs in wetlands?

• Most amphibians need to lay their eggs under water or on moist

  ground.

• Most amphibians lay eggs in the area where they find a warm spot.

• Most amphibians lay eggs in an area where they are prey.

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Ecosystems

In which ecosystem can the greatest variety of organisms be found?

• lake

• estuary

• rainforest

• stream

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Ecosystems

Look at the food chain below.

Leaf →Cricket→Frog→Garter Snake→Skunk

What would MOST likely cause the number of garter snakes to decrease?

• more leaves

• more crickets

• more frogs

• more skunks

Tags

Ecosystems

The diagram above shows a stream food web.

The number of stonefly nymphs in a large stream increased over the last year. How will this MOST likely affect this food web?

• The brook trout population will increase, and the fly larva will decrease.

• The fly larva population will increase, and mayfly nymph population will decrease.

• The kingfisher population will decrease, and the brook trout population will increase.

• The mayfly nymph population will decrease, and the algae population will increase.

Tags

Ecosystems

Rays from the sun are shining down on a house, as shown in the illustration. What effect does the sun have on the temperature of the house?

• The temperature of the house increases because heat radiates from the sun.

• The temperature of the house increases because heat is conducted by the sun.

• The temperature of the house decreases because heat is convected by the sun.

• The temperature of the house decreases because the sun absorbs heat from the house.

Tags

Heat