Water

Plants use water to

• release as a waste product

• keep predators away

• make their own food

• attract pollinators

What causes cold, deep currents to form in the oceans near the poles?

• sinking of dense, cold water with high salinity

• the Coriolis force

• movement of a large mass of warm water across the pacific

• sinking of cold freshwater from melting icebergs

As a wave nears shore, the wave height increases and the wavelengths

• decreases

• increases

• stays the same

• doubles

Approximately what percentage of Earth's water is fresh water?

• 97 percent

• 71 percent

• 30 percent

• 3 percent

A large stream of moving water that flows through the oceans is called a(n)

• current

• tsunami

• tide

• undertow

The water in ponds and lakes is

• moving

• deep

• still

• salty

Clay is highly porous. However, clay does not allow water to permeate very easily. Why?

• Clay contains very few pores

• Clay contains many pores

• The pores in clay are very large

• The pores in clay are very small

Water that falls to Earth as rain, snow. sleet, or hail is called

• condensation

• evaporation

• precipitation

• transpiration

A deep canyon in the ocean floor is called a(n)

• abyssal plain

• seamount

• trench

• continental shelf

What is the process by which solid ice can change directly into water vapor?

• sublimation

• condensation

• precipitation

• infiltration