Land, Water & Human Interaction Quiz 1-5

ocean

Water on Earth is found primarily in

Water

In the natural world, which liquid dissolves more substances than any other?

human population

What measurement is NOT a water quality indicator?

change in pH of the water, a human impact on the water, and declining water quality

If a population of aquatic species declines over time, it could be an indicator of

runoff from fertilizers, agricultural activities, and wastewater discharge.

An excess of nutrients in water can be the result of

nitrogen and phosphorus

Excess nutrients in water are made up of

contaminant

any physical, chemical, or biological substances in water

runoff

excess, melted snow, or irrigation water that flows across the ground

macroinvertebrates

animals without backbones that are large enough to see without magnification

nutrients

chemicals that an organism takes in from its environment to use as a source of energy or as building blocks for growth

human impact

The effect on living organisms and their nonliving environment due to human activity is called.

water quality

a measure of the water condition  based on its characteristics

indicator

Any visible sign that shows the condition of the system being studied

dissolve

To mix the particles of one substance evenly into the particles of another substance

Groundwater

water that is found underground in spaces and cracks in the earth