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WorksheetsLife: Chapter 20-21
Total questions: 50
Worksheet time: 4hrs 10mins
Name
Class
Date
1.
Which of the following is a biotic factor in a biome?
a)
bodies of water
b)
types of rocks
c)
amount of rainfall
d)
kinds of birds
2.
The speed of water is an important abiotic factor in a freshwater ecosystem because...
a)
animals cannot live in fast moving water
b)
animals must adapt so they are not washed away
c)
faster water has a higher salt content
d)
a tributary has different plants than a river
3.
One important abiotic factor in marine ecosystems is the...
a)
size of animals
b)
kinds of algae
c)
water depth
d)
amount of plankton
4.
Most of the nutrients in a tropical rain forest are found in plants, so...
a)
the rain forest soil is poor in nutrients
b)
there are few animals in the rain forest
c)
there are few plants in the rain forest
d)
the rain forest soil is very rich
5.
From where do plankton get food?
a)
whales
b)
photosynthesis
c)
insects
d)
small fish
6.
What happens as sediment and decaying organisms build up in a pond?
a)
the pond may become a forest
b)
the water may have more salt
c)
more fish may live in the pond
d)
the pond may become a lake
7.
How can the littoral zone of a lake or pond be described?
a)
an area closest to the edge of a lake/pond
b)
an area with no plant life
c)
an area with no animal life
d)
an area with no sun life
8.
What biome contains permafrost?
a)
polar tundra
b)
coniferous forest
c)
savanna
d)
desert
9.
Which biome has many trees that do not change much seasonally?
a)
coniferous forest
b)
savanna
c)
temperate grasslands
d)
deciduous forest
10.
Which biome has organisms with special adaptations to a hot, dry climate?
a)
desert
b)
savanna
c)
polar tundra
d)
alpine tundra
11.
Which biome has clumps of trees and seasonal rains?
a)
savanna
b)
desert
c)
deciduous forest
d)
temperate grasslands
12.
Which biomes is found above the tree line in mountains?
a)
alpine tundra
b)
polar tundra
c)
coniferous forest
d)
deciduous forest
13.
Which biome has many trees that lose all of their leaves to save water?
a)
deciduous forest
b)
coniferous forest
c)
temperate grassland
d)
savanna
14.
Which biome has grass, but few trees due to fires, drought, and grazing?
a)
temperate grasslands
b)
polar tundra
c)
savanna
d)
desert
15.
What is made of the skeletons of small animals?
a)
coral reef
b)
estuary
c)
marsh
d)
intertidal area
16.
What area contains huge, floating rafts of algae?
a)
polar ice
b)
swamp
c)
Sargasso Sea
d)
coral reef
17.
What biome is a wetland that is often in shallow areas along shores?
a)
polar ice
b)
marsh
c)
swamp
d)
coral reef
18.
What area has icy waters that are rich in nutrients?
a)
Sargasso Sea
b)
coral reef
c)
intertidal area
d)
polar ice
19.
What area has a constantly changing amount of salt in the water?
a)
marsh
b)
estuary
c)
swamp
d)
coral reef
20.
What biome is a wetland that has trees and is often found in low-lying areas?
a)
estuary
b)
marsh
c)
coral reef
d)
swamp
21.
What area includes mudflats, sandy beaches, and rocky shores?
a)
coral reef
b)
marsh
c)
intertidal area
d)
estuary
22.
Identify the zone of a lake or pond below the open-water zone, where no light reaches.
a)
wetland
b)
deepwater zone
c)
openwater zone
d)
plankton
23.
Where is the shallow zone of a lake or pond where light reaches the bottom and nurtures plants?
a)
deepwater zone
b)
openwater zone
c)
littoral zone
d)
desert
24.
Which zone of a pond or lake extends from the littoral zone and that is only as deep as light can reach it?
a)
deepwater zone
b)
littoral zone
c)
plankton zone
d)
openwater zone
25.
The 5 major kinds of pollution are gases, noise, garbage, chemicals, and...
a)
dirt
b)
odors
c)
radiation
d)
rain
26.
Using fewer natural resources and reducing wastes can help...
a)
slow human population growth and increase diversity
b)
stop illness and create fossil fuels
c)
prevent biodiversity and destroy species
d)
end habitat destruction and reduce pollution
27.
The number and variety of organisms in a given area at a certain time is called...
a)
overpopulation
b)
ecology
c)
biodiversity
d)
kingdoms
28.
A habitat is home to many organisms, and destroying a habitat affects...
a)
biodiversity
b)
pollution
c)
resources
d)
weather
29.
The process of recovering valuable or useful materials from waste or scrap is called...
a)
renewing
b)
recycling
c)
reliving
d)
reducing
30.
People can help protect habitats by conserving wetlands and...
a)
using pesticides
b)
using nuclear power
c)
reducing deforestation
d)
not traveling
31.
Wastes that can catch fire, eat through metal, explode, or make people sick are...
a)
pesticides
b)
hazardous wastes
c)
critical wastes
d)
garbage
32.
Using garbage and waste to make electricity is an example of...
a)
resource recovery
b)
resource renewal
c)
electrical destruction
d)
electrical reuse
33.
Three ways to conserve resources are reusing, recycling, and ...
a)
rebuilding
b)
rethinking
c)
reducing
d)
renewing
34.
Human population growth has been made possible because of...
a)
advances in farming and medicine
b)
unpolluted water and numerous landfills
c)
unlimited habitats and nuclear power
d)
increased industrial capacity and nuclear power
35.
Pollution can affect humans by causing...
a)
measles and mumps
b)
mumps and cancer
c)
colds and flu
d)
cancer and respirato
36.
One way to kill harmful insects while protecting beneficial insects is to use...
a)
spray pesticides
b)
natural pesticides
c)
nonaerosol insecticides
d)
inexpensive pesticides
37.
The Endangered Species Act protects individual species by...
a)
reducing biodiversity
b)
forbidding harm to exotic species
c)
forbidding harm to endangered species
d)
developing recovery programs for exotic species
38.
Developing alternative energy sources will reduce our need for...
a)
cars
b)
electricity
c)
fossil fuels
d)
habitats
39.
To help protect biodiversity, we must...
a)
protect habitats
b)
expand pesticide use
c)
increase the use of nonrenewable energy
d)
encourage human population growth
40.
Pollution can be reduced if people recycle and buy...
a)
new cars
b)
recycled products
c)
fossil fuels
d)
used cars
41.
Something that can be broken down by living organisms is...
a)
biodegradable
b)
economic
c)
ecological
d)
renewable
42.
Which chemicals destroy protective ozone?
a)
PCBs
b)
CFCs
c)
radioactive wastes
d)
carbon dioxide
43.
The northern snakehead fish was introduced into North America from Asia. It is an example of an...
a)
plant species
b)
endangered species
c)
exotic species
d)
renewable species
44.
What is the preservation and wise use of natural resources?
a)
overpopulation
b)
conseravtion
c)
pollution
d)
renweable resource
45.
What is an unwanted change in the environment that is caused by substance or forms of energy?
a)
pollution
b)
toxic
c)
renewable resources
d)
nonrenewable resources
46.
What type of pollution comes from only one source?
a)
point-source pollution
b)
overpopulation
c)
nonpoint-source pollution
d)
conservation
47.
A natural resource that can be replaced at the same rate at which the resource is consumed...
a)
renewable resource
b)
nonrenewable resource
c)
conservation
d)
nonpoint-source pollution
48.
A natural resource that forms more slowly than the rate at which it is consumed...
a)
overpopulation
b)
nonrenewable resource
c)
renewable resource
d)
conservation
49.
Too many organisms in an area for the resources available...
a)
overpopulation
b)
conservation
c)
pollution
d)
candy lollipops
50.
What is this ad selling?
a)
Camel food
b)
Cars
c)
Latex clothing
d)
Snickers
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