earth science
Which of the following statements is true? Earth's water is distributed evenly around the world. Ninety-five percent of the world's population has access to the water they need. Glaciers add to Earth's groundwater and surface water sources. Economic scarcity happens when climate limits the amount of available water.
Glaciers add to Earth's groundwater and surface water sources.
Which of the following statements is true? Water is easily polluted because it can dissolve harmful chemicals. When water freezes, it contracts and becomes more dense. Thermal pollution happens when cold water is released into an ecosystem. Adhesion describes a water molecule's attraction to another water molecule.
Water is easily polluted because it can dissolve harmful chemicals.
Which of the following locations will most likely have the highest average annual precipitation? South Pole Sahara Desert Juneau, Alaska Amazon Rainforest
amazon rainforest
Cohesion describes water's _____. attraction to other substances attraction to itself ability to dissolve most substances rate of cooling and heating
attraction to itself
Water _____. boils at 100°C cools very quickly is made of helium and oxygen is slightly acidic at the oxygen end
boils at 100°C
Most freshwater-use is _____. for irrigation for industry and electrical power to supply the public with drinking water for swimming pools
for industry and electrical power
Evaporation _____. occurs equally all over the globe is the change in state from a gas to a liquid happens more quickly in warm areas than cool ones is the process by which plants release water into the atmosphere
happens more quickly in warm areas than cool ones
Hot water _____. has a higher pH value than cold water holds less dissolved oxygen than cold water is beneficial to living organisms in aquatic ecosystems contains more hydrogen than cold water
holds less dissolved oxygen than cold water
Surface tension _____. causes water to spread out is the ability of water to dissolve a substance creates a thin, elastic layer of hydrogen atoms is caused by cohesion between water molecules on the surface
is caused by cohesion between water molecules on the surface
Ice floats in water because it _____. is less dense than water contains more oxygen than water has a higher pH than water has more surface tension than water
is less dense than water
Groundwater _____. contains high levels of salt minerals is the largest available source of freshwater is only found in very wet climates is only used to supply the public with drinking water
is the largest available source of freshwater
The "hardness" of water describes _____. how quickly it heats and cools its attraction to other substances its level of dissolved minerals how much dissolved oxygen it contains
its level of dissolved minerals
Which of the following is part of the smallest percentage of freshwater? Lake Powell Hubbard Glacier Pacific Ocean Baltic Sea
lake powell
Most of the water vapor in Earth's atmosphere comes from _____. sublimation and transpiration infiltration and surface runoff rain, sleet, hail, snow, and freezing rain oceans, seas, lakes, and rivers
oceans, seas, lakes, and rivers
Which of the following locations will most likely have the highest rate of evaporation? North Pole Gobi Desert Pacific Ocean Amazon Rainforest
pacific ocean
Condensation _____. is the change from liquid water to water vapor requires dust or other tiny particles happens more quickly in dry locations than in wet ones drives the water cycle
requires dust or other tiny particles
Which of the following locations most-likely experiences physical water scarcity? Amazon Rainforest Boston, Massachusetts Florida Wetlands Sahara Desert
sahara desert
The oxygen side of a water molecule is _____. neutral slightly negative slightly positive
slightly negative
Which of the following areas will most likely have the greatest amount of surface runoff? low, flat plain steep mountainside sandy beach dry desert sand
steep mountainside
Most of Earth's freshwater is _____. found in oceans and seas Most of Earth's freshwater is _____. found in oceans and seas stored in glaciers and ice caps groundwater stored beneath the surface found in lakes, rivers, streams, and reservoirs groundwater stored beneath the surface found in lakes, rivers, streams, and reservoirs
stored in glaciers and ice caps
In cold, snowy areas, water is added to the atmosphere through _____. sublimation condensation transpiration precipitation
sublimation
Most saltwater-use is _____. to irrigate crops for public drinking water for industry and mining to generate electricity
to generate electricity
Phineas has a tomato plant. The plant adds water to the atmosphere through _____. transpiration evaporation sublimation condensation
transpiration
Most of Earth's water is _____. freshwater stored as ice unsuitable for drinking found beneath the surface
unsuitable for drinking
