Indiana Science Grade 8

Chapter 19: The Nonliving Environment

The Nonliving Environment

1.
Which of these organisms is the first step in a food chain?
A)amphibians
B)consumers
C)producers
D)mammals
2.
Which of these makes its own food?
A)water
B)carnivores
C)soil
D)producers
3.
Which of these is an energy source for chemosynthesis?
A)sunlight
B)sulfur molecules
C)moonlight
D)omnivores
4.
The process that is almost the reverse of photosynthesis is __________.
A)fertilization
B)respiration
C)metamorphosis
D)migration
5.
Features of the environment that are alive now or once were alive are called __________.
A)food webs
B)biotic factors
C)nitrogen cycles
D)abiotic factors
6.
Which of these is true?
A)Energy is never converted from one form to another.
B)Consumers produce their own food.
C)Producers never make their own food.
D)Energy can be transferred form one organism to another.
7.
Where would you find organisms that produce food by chemosynthesis?
A)in treetops
B)in deciduous rain forest biomes
C)in a deep part of the ocean
D)in desert biomes
8.
Which of these is an abiotic factor?
A)sunlight
B)a pine tree
C)a beetle
D)a raccoon
9.
Non-living physical features of the environment are called ________.
A)food chains
B)carbon cycles
C)abiotic factors
D)biotic factors
10.
Consumers are organisms that cannot __________.
A)survive
B)evaporate
C)photosynthesize
D)reproduce
11.
Which group makes up the largest level of an energy pyramid?
A)producers
B)carnivores
C)consumers
D)omnivores
12.
What is created when colder air sinks below warmer air and pushes warmer air upward?
A)air currents
B)omnivores
C)humus
D)precipitation
13.
Which of these is the correct order of a food chain?
A)A rabbit is eaten by a wolf, which is eaten by grass.
B)Grass is eaten by a rabbit, which is eaten by a wolf.
C)A rabbit is eaten by grass, which is eaten by a wolf.
D)A wolf is eaten by grass, which is eaten by a rabbit.
14.
Which of these affects the temperature of a region?
A)the amount of humus in the soil
B)latitude
C)the number of carnivores
D)photosynthesis
15.
DNA in organisms is formed by ___________.
A)biotic factors
B)nucleic acids
C)acid-base reactions
D)hydrochloric acid
16.
Rainfall patterns can be affected by __________.
A)the abundance of animals
B)the presence of mountains
C)clay in the soil
D)the availability of plant life
17.
Which of these is part of the nitrogen cycle?
A)Nitrogen is produced by living organisms.
B)Nitrogen goes from the atmosphere to the soil.
C)Nitrogen is removed from the soil by animal wastes.
D)Nitrogen is absorbed by plants when they die.
18.
Which of these can add nitrogen to the soil?
A)plastic
B)paper
C)glass
D)compost
19.
The air that surrounds Earth is called __________.
A)humus
B)respiration
C)the core
D)the atmosphere
20.
Grass uses photosynthesis to produce __________.
A)sugar molecules
B)fewer offspring
C)water
D)evaporation
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