NR1 4.00 Test

Front

The soil horizon with the most organic matter is the:

Back

A horizon.

Front

When small channels form on sloping land where running water from precipitation has washed soil away, it is best called:

Back

rill erosion.

Front

The major effect of air pollution on the climate has been:

Back

the greenhouse effect.

Front

When rill erosion is uncontrolled, the main result is: A. aseptic erosion. B. glacial erosion. C. sheet erosion. D. gully erosion.

Back

gully erosion.

Front

Soils that contain 50% solid materials and 50% pore space, with half of the pore space containing water and the other half filled with air, are considered:

Back

ideal.

Front

The largest soil particles are:

Back

sand.

Front

Small pieces of material in the air similar to dust and liquid droplets are best known as:

Back

particulate matter.

Front

A catalytic converter on a car and a scrubber used on a smokestack:

Back

controls emissions.

Front

When Nick was trying to determine how much fertilizer to use on his fields, he asked the county agriculture agent and was told that he should:

Back

perform a nutrient analysis or soil test.

Front

What is it called when rows of trees are planted to prevent soil erosion on level, sandy land?

Back

windbreak