Agriculture Unit Test

What is the name for the substance from which soil is created?

Parent Material

Organic matter includes plant roots, decaying plant matter, and animals. True or False?

True

Why are plants essential for animal survival?

animals cannot photosynthesize to create energy like plants do

Which of the following is an example of how plants need animals for survival?

animals spread plant seeds

Much of the water cycle is dependent upon the gaseous envelope surrounding the earth. What is another term for this layer of gas?

atmosphere

What is the term that refers to the ability or power to conduct or transmit electricity?

conductivity

What is the point at which two streams meet called?

confluence

What is an organism that is able to produce its own food from inorganic substances called?

producer

What are the factors that cause differences in biomes?

temperature and precipitation

How are soil horizons different?

texture, structure and color

What is a measure of the combined content of all organic and inorganic substances in a liquid in molecular or ionized suspended form?

total dissolved solids

What process would be the opposite of soil formation?

Erosion

One water quality factor, such as temperature, does not affect another, such as dissolved oxygen. True or False?

False

The four major soil components are mineral matter, air, water and sunlight. True or False?

False

How much energy is transferred from one tropic level to the next?

10

When rainfall occurs over a hill, where would you expect to see soil deposited?

Bottom

What soil-forming factor forces that act on soils & break rock into smaller fragments

Climate

What is an unintentional pollutant added to a waterway?

Contaminate

To reduce soil loss due to wind and snow during winter, establish what type of plant?

Cover Crop

A food pathway is beginning with a producer and along which energy is transferred from trophic level to trophic level. True or False?

False

Biotic factors of an ecosystem include soil, rocks and water. True or False?

False

Of the following, which is NOT a cause of soil erosion?

Fire

How can you protect soil from erosion?

Grow a cover Crop

Eroded soils become _____efficient for growing crops and in some cases only bedrock may remain.

Less

Why is non-point source pollution (NPSP) so difficult to prevent?

NPSP comes from a widespread area

What is the open space available for air and water in the soil called

Porosity

What is a vertical section of a soil with its face of an exposure made by a cut, to see layers?

Profile

What is the largest mineral particle in a soil?

Sand

Air in soil provides oxygen for what plant part

Root

What term refers to the slope of the land and the position on the landscape?

Topography

Abiotic factors are the non-living components of an ecosystem. True or False?

True

An omnivore is an organism that eats both plants and animals. True or False?

True

What is the term used to include taiga, grassland, desert, and rainforest?

biomes

Why do ecosystems include both biotic and abiotic factors?

biotic factors interact with all items within their environment

How are plants and animals similar?

both plants and animals undergo cellular respiration

What is resistance to change in acidity or alkalinity called?

buffering capacity

What is a consumer that eats other consumers called?

carnivore

The atmospheric and meteorological influences, such as temperature, precipitation, air pressure, ad air movement, that combine to characterize the landforms, soils, vegetation, and land use of a region are known as what?

climate

What is the process of turning vapor into a liquid?

condensation

What is the amount of oxygen present in water in a dissolved state?

dissolved oxygen

What is the term for all biotic and abiotic components of an environment?

ecosystem

What is the study of the relationship between organisms and their environment?

ecology

What is the process of transforming a liquid into a gas?

evaporation

What is a consumer that eats primary producers called?

herbivore

How can you increase pore space in a soil?

incorporate more organic matter into the soil

What happens to water as it moves upwards in the atmosphere?

it cools and condenses

What is the measurement of the alkalinity or acidity of waters?

pH

Which of the following is an example of how biotic and abiotic factors interact?

plants depend on soil for nutrients and water

What is pollution that occurs from a single source?

point source pollution

What is the term for a substance in water, soil, or air which impairs the usefulness or renders it offensive to the sense of sight, taste, or smell?

pollution

What is the collective term for water, hail, sleet, and snow?

precipitation

Which A horizon would be the deepest?

soil formed under a prairie over 10,000 years

All energy in an ecosystem originates from what source?

the sun

What term includes all broad features, such as plain, plateau, and mountain, and also all the minor features, such as hill, valley, slope, canyon, and alluvial fan?

topography

What is a change in form, appearance, nature, or character which soils experience?

transformation

What is the passage of water through a plant from the roots through the vascular system to the atmosphere called?

transpiration

How is cloudiness of water due to the presence of colloidal matter or other finely divided suspended matter measured?

turbidity