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Total Points : 340
Passing Score : 70%(238 points)
No / Questions / Image / Points
1 / The study of how living things interact is called
( ) / The energy pyramid
(x) / Ecology
( ) / Abiotic factors
( ) / Ecosystems
/ 10
2 / The source of energy for almost all life on Earth is
( ) / Water
( ) / Animals
(x) / Sunlight
( ) / Fungi
/ 10
3 / An example of a biotic factor in a forest ecosystem is
( ) / A rock
( ) / Cliff
(x) / A tree
( ) / Waterfall
/ 10
4 / An ecosystem is made up of
( ) / Living things only
( ) / Physical environment only
( ) / Living things and decaying matter
(x) / Living things and the physical environment
/ 10
5 / A plant takes in a gas from the air to make sugar during photosynthesis. This process is part of the
(x) / Carbon cycle
( ) / Nitrogen cycle
( ) / Physical cycle
( ) / Water cycle
/ 10
6 / Heat energy from the sun causes water to
( ) / Precipitate
( ) / Accumulate
( ) / Condensate
(x) / Evaporate
/ 10
7 / Fossil fuels such as coal and oil result from what?
( ) / Burning gas
( ) / The water cycle
(x) / Decay dissolving into the earth
( ) / Combustion
/ 10
8 / One reason the vegetation changes as you hike up a mountain is a change in
( ) / Gravity
(x) / Carbon in the air
( ) / Light
( ) / Oxygen in the air
/ 10
9 / An example of a biotic factor in a pond ecosystem is
( ) / Water
( ) / Sunlight
(x) / Fish
( ) / Temperature
/ 10
10 / Both the soil and the trees in a forest are in the same
(x) / Ecosystem
( ) / Food chain
( ) / Biotic factor
( ) / Food web
/ 10
11 / Nonliving parts of an ecosystem include temperature, light, water, and
(x) / Soil
( ) / Humans
( ) / Trees
( ) / Bacteria
/ 10
12 / Why would it be difficult for a plant to live in a sealed container?
(x) / Carbon would not be able to make a complete cycle
( ) / Too much sunlight would pass through the container
( ) / Not enough pure nitrogen gas would be available for respiration
( ) / Other organisms could not feed on the plant
/ 10
13 / Every living organism is mostly made of
(x) / Water
( ) / Carbon
( ) / Oxygen
( ) / Nitrogen
/ 10
14 / One species of rabbit has short ears and thick fur. A closely related species has long ears and short, thin fur. The abiotic factor that may determine where the different rabbits live is
( ) / Light
( ) / Soil
(x) / Temperature
( ) / Rainfall
/ 10
15 / Put the steps of the water cycle in order.
a. / evaporation
b. / Condensation
c. / Precipitation
d. / Accumulation
/ 10
16 / What gases are exchanged in animal respiration?
( ) / carbon dioxide is used, oxygen is released
( ) / nitrogen is used, carbon dioxide is released
( ) / nitrogen is used, oxygen is released
(x) / oxygen is used, carbon dioxide is released
/ 10
17 / A decrease in temperature may cause water to change from a
( ) / Solid to a gas
( ) / Liquid to a gas
( ) / Solid to a liquid
(x) / Liquid to a solid
/ 10
18 / Water is important because it
(x) / Is necessary for life
( ) / Always exists in a liquid state
( ) / Covers most of the earth surface
( ) / Never changes its form
/ 10
19 / Which water cycle process is rain?
( ) / Condensation
( ) / Transpiration
(x) / Precipitation
( ) / Evaporation
/ 10
20 / Most of Earth's fresh water is found in
( ) / The great lakes
(x) / Rivers, lakes, and ground water
( ) / Oceans
( ) / The atmosphere
/ 10
21 / How much of the Earth's surface is water?
(x) / 71%
( ) / 97%
( ) / 3%
( ) / 29%
/ 10
22 / In 1995, about how much fresh water was used for irrigation?
( ) / 4%
(x) / 39%
( ) / 6%
( ) / 12%
/ / 10
23 / About how much fresh water was used for thermoelectric power?
( ) / 12% or about 3/10
( ) / 29% or about 6/10
(x) / 39% or about 4/10
( ) / 12% or about 1/10
/ / 10
24 / What fraction of fresh water was used for public supply?
(x) / About 3/10
( ) / About 7/10
( ) / About 9/10
( ) / About 1/10
/ / 10
25 / What stage of the water cycle is A?
( ) / Accumulation
( ) / Condensation
(x) / Evaporation
( ) / Precipitation
/ / 10
26 / What stage of the water cycle is D?
(x) / Accumulation
( ) / Evaporation
( ) / Condensation
( ) / Precipitation
/ / 10
27 / What stage of the water cycle is C?
( ) / Condensation
(x) / Precipitation
( ) / Evaporation
( ) / Accumulation
/ / 10
28 / What stage of the water cycle is B?
( ) / Evaporation
( ) / Precipitation
( ) / Accumulation
(x) / Condensation
/ / 10
29 / You can see condensation.
(x) / True
( ) / False
/ 10
30 / When a plant sweats it is called
( ) / Condensation
( ) / Perspiration
( ) / Respiration
(x) / Transpiration
/ 10
31 / Precipitation happens when
( ) / Clouds form
(x) / The water droplets get heavy enough to fall
( ) / The evaporation turns into water
( ) / The atmospheric pressure is high
/ 10
32 / How much water evaporates over land?
(x) / 71,000 km3
( ) / 434,000 km3
( ) / 107,000 km3
( ) / 398,000 km3
/ / 10
33 / How does the amount of water that evaporates over land compare with the amount of water that evaporates over the ocean?
( ) / the amount of water over land is more than the amount of water over the ocean.
( ) / The evaporation and precipitation over land is the same as the evaporation and precipitation over ocean.
( ) / the amount of water over land is the same as the amount of water over the ocean.
(x) / the amount of water over land is less than the amount of water over the ocean.
/ / 10
34 / How much water flows from the land to the ocean?
( ) / 107,000 km3
(x) / 36,000 km3
( ) / 71,000 km3
( ) / 398,000 km3
/ / 10
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