ENR Exam 2021

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What is the area of earth that supports life called?

The biosphere

All the parts of a particular environment form a

Ecosystem

Effluent water is described as...

Water that is discharged from factories or farms

The term "biodegradable" refers to materials that can be broken down such as newspapers. "Bio" in this term refers to what?

Bacteria breaking down these materials

Material. That is the result of decomposition of organic matter is.

compost

A type of resource that can be replaced or re-created once they are used

Renewable

What are living and nonliving things found on earth that people need

Natural resources

In the Hydrologic cycle, evaporation and transpiration would cause which of the following

precipitation

The most abundant element in earths atmosphere

Nitrogen

Acid rain is associated with which of the following?

burning fossil fuels

Dissolved oxygen is an important water quality measurement. If there is an excessive amount of decaying plant material in a body of water, will this affect a DO levels.

This will lower the levels of DO in the water

Soil texture describes

the proportion of sand, silt, and clay in soil

Which of the following statements is true when referring to soil particles

Clay is the smallest particle in soil

Which of the following soils has the most water holding capacity?

Soils that have a high clay content

Which of the following would be typical very little to no slope for a piece of land

May stay wet longer and limit decay of organic matter

Water quality is less effective by

Fish species

When two species of wild life live together for the benefit of both, the relationship is called

Mutualism

Which relationship refers to a plant or animal that lives in, on, or with another sharing food, but not helping or harming it

Commensalism

Soil pH is generally raised by adding

lime

In which of the following so horizons is parent material, usually found in

Horizon C

What is an organism called that is sensitive to pollution and is used to determine the suitability of a living environment

indicator species

Overly wet soil is often low in productivity. Which of the following are true in these wet soils

Little or no air can penetrate the soil

Soil profile is...

A cross-section view of soil

In the air, what filters at harmful ultraviolet rays from the sun?

The ozone in the air

The sulfur in the air, combines with oxygen and moisture form what, which has been found to damage and kill trees, and other plants

Sulfuric acid

The process of bacteria, changing dead organisms into ammonia, then to nitrate, and finally to nitrates, which are useful to plants is called

Nitrification

Nitro is oxide is the troublesome pollutant, occurring from which of the following major sources

Gasoline engines

What is the ozone damaging substance?

Chlorofluorocarbons

What is the poisonous gas we cannot remove from auto exhaust

carbon monoxide

What is the over accumulation of politicians at successive levels in the food chain called

Biomagnification

It's the producers in a food web were removed, which of the following changes would most likely occur

The entire food web with collapse overtime

A food web is different from a food chain because...

A food web is a combination of several food chains

Which has the lowest tendency to form clods, the least moisture holding capacity in the least fertility

sand

The amount of dissolved oxygen in warm water is what then it is in cold water

Lower

Lines of longitude

Are known as meridians

What data includes information pertaining to satellite orbital corrections

Ephemeris

What errors are known to occur from signal reflections from various nearby objects?

Multipath

GPS is a constellation of approximately ________ satellites.

24

Prolonged presence of water, hydric soils, and presence of hydrophytic plants are characterized as

Wetlands

Oxygen can be added to a pond by doing which of the following

aeration

Which of the following atmospheric zones is farthest from the surface of the Earth?

Ionosphere

Which of the following absorbs almost all the ultraviolet radiation that reaches the Earth

Stratospheric ozone

Which is not true about non-renewable sources

They cannot be stored for future use

What is a form of heat energy, which originates deep in the Earth's molten interior

Geothermal

Of the following sources, which supplies the most commercial energy in the world today?

oil

Which of the following is an environmental problem associated with abandoned coil mines

Acid drainage due to leaching of spoil heaps by rainwater

Particulates released into the air form industrial processes, affecting air quality, can be removed by the process of

Scrubbing

Which of the following is not an area of concentration to prevent contamination of groundwater by cropping pesticides

Overgrazing areas of concern

Which of the following is a type of groundwater that is available to plant roots

capillary water

The communication of salt and water occurs most often when...

Water is lost through evaporation