Edition By L. DeVere Burton 9781133686880 Chapter 1-42
Complete Guide .
Air is made up of - ANSWER: 78% nitrogen and 21% oxygen
Pure water is - ANSWER: odorless
Without proper air to breathe, a human can only survive about - ANSWER: six minutes
Radon gas is a widespread threat to air quality - ANSWER: in homes
Radioactive dust is likely to be caused by - ANSWER: nuclear reactions
Chemicals used to kill insects are called - ANSWER: insecticides
One ingredient not associated with photosynthesis is:
a.radon
b.water
c.oxygen
d. carbon dioxide - ANSWER: a.radon
Chlorofluorocarbons have been found to damage in - ANSWER: the ozone layer
Poisonous gas we cannot remove from auto exhaust - ANSWER: carbon monoxide
The most reliable source of information on the use of a pesticide is the - ANSWER: product label
The buildup of heat resulting from sunlight passing through glass and heating trapped air in the
interior area is called - ANSWER: the greenhouse effect
A product of decaying plant or animal matter is - ANSWER: methane
Carbon Monoxide - ANSWER: causes death from auto exhaust
Chlorofluorocarbons - ANSWER: Damaged the Ozone layer
Hydrocarbons - ANSWER: pollutants from autos and factories
Lead - ANSWER: tetraethyl
Nitrous Oxides - ANSWER: 5 percent of auto exhaust
Ozone - ANSWER: Filters ultraviolet rays
Radon - ANSWER: leaks into houses
Pests - ANSWER: diseases, insects, weeds
Photosynthesis - ANSWER: Chlorophyll, light, carbon dioxide
Sulfur - ANSWER: pale yellow
, Most of Earth's surface is covered with - ANSWER: water
The bodies of plants, animals, and humans consist of about what percentage water? - ANSWER: 70
percent
The universal solvent is - ANSWER: water
The content of ocean water may be likened to - ANSWER: thin soup
The independence of plants and animals on each of for food is known as - ANSWER: the food chain
The land serving as a great and compression chamber gives us - ANSWER: coal and oil
Groundwater that is available for plant root absorption is called - ANSWER: capillary
Improvement of water quality can be achieved by - ANSWER: appropriate use of water
The problem of land erosion is - ANSWER: found worldwide
A conservation plan - ANSWER: conserves soil and water, is prepared by professionals, and maximizes
productivity of land
Contour - ANSWER: On the level
Delta - ANSWER: Soil deposited by water
Evaporation - ANSWER: Liquid to gas
Fertility - ANSWER: Amount and type of nutrients
Irrigation - ANSWER: supplemental water
No-till - ANSWER: Without plowing or disking
Port - ANSWER: Town with a harbor
Precipitation - ANSWER: rain and snow
Purify - ANSWER: removal of foreign material
Water table - ANSWER: Top of saturated soil
An example of a plant growing media is - ANSWER: Soil, water, and perlite.
Decay of organic matter is caused by - ANSWER: microbes
Which is not a factor affecting soil formation?
A. hydroponics
B. Gravity
C. Ice
D. Water - ANSWER: A. hydroponics
Humans affect soil formation by - ANSWER: irrigating
The land class with the fewest limitations is - ANSWER: Class 1
The land classes suitable for field crop production are - ANSWER: I, II, III, and IV