AnswersIntegrated Science 9 part 2 SHS onlineUnit Test

Unit Test — Unit test Answers

5 verified answers
1
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Which example describes biotic factors interacting with the environment?

A
sunlight shining through a window
B
oxygen circulating in the atmosphere
C
rain forming puddles on the sidewalk
D
butterflies resting on the flower of a plant
2
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Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rain that dissolves limestone rocks?

A
atmosphere, cryosphere, geosphere
B
cryosphere, hydrosphere, biosphere
C
geosphere, atmosphere, hydrosphere
D
biosphere, atmosphere, cryosphere
3

Which event would most likely cause a competition for water?

A
Male deer hunt for their food.
B
A valley is stricken with drought.
C
Prairie dogs search for shelter.
D
A rainforest is exposed to sunlight.
4

A volcanic eruption releasing rock, ash, and dust particles into the air is an example of which interaction?

A
the biosphere interacting with the geosphere
B
the geosphere interacting with the atmosphere
C
the geosphere interacting with the hydrosphere
D
the hydrosphere interacting with the atmosphere
5

Which group of organisms obtains energy by breaking down waste and dead organisms?

A
consumers
B
decomposers
C
predators
D
producers
6

Which statement describes predators?

A
They provide energy for other organisms.
B
They get energy from the Sun for other organisms.
C
They obtain energy from dead organisms.
D
They hunt other organisms to obtain energy.
7

During the nitrogen cycle, through which structure are nitrogen compounds first absorbed into the plant?

A
roots
B
leaves
C
flower
D
stem
8

Rosa drew a flow chart of the carbon cycle.

Question illustration
A
X: Producers undergo photosynthesis.Y: Decomposers return carbon to the soil and release waste.
B
X: Decomposers return carbon to the soil and release waste.Y: Producers undergo photosynthesis.
C
X: Decomposers take in carbon dioxide.Y: Producers absorb carbon through their roots.
D
X: Producers absorb carbon through their roots.Y: Decomposers take in carbon dioxide.
9

A tropical rainforest includes trees, animals, insects, plants, rain, rivers, rocks, soil, and warm, moist air.Which spheres of Earth are represented in a tropical rainforest?

A
biosphere, geosphere, hydrosphere
B
cryosphere, hydrosphere, ionosphere
C
geosphere, biosphere, cryosphere
D
ionosphere, hydrosphere, geosphere
10

Which type of organism is always at the beginning of a food web?

A
producer
B
decomposer
C
primary consumer
D
secondary consumer
11

Several cheetahs are growling at each other while hunting for animals. For which need are they competing?

A
food
B
shelter
C
sunlight
D
water
12

Which sphere of Earth includes icebergs?

A
atmosphere
B
biosphere
C
cryosphere
D
geosphere
13

The diagram illustrates the water cycle.

Question illustration
A
precipitation
B
evaporation
C
condensation
D
transpiration
14

A group of the same species of salmon lives in a stream. Which level of organization does this best describe?

A
community
B
ecosystem
C
organism
D
population
15

Some consumers, like lions, do not eat plants or any other producers. They only eat other animals.How do lions obtain the carbon they need?

A
by eating animals that have carbon-based molecules stored in their bodies
B
by breathing it in from the atmosphere in the form of carbon dioxide
C
by absorbing carbon-based molecules through their skin from the soil
D
by drinking water that contains carbon dioxide
16

A dodder plant wraps itself around a potato plant. The dodder then uses its root system to obtain water and nutrients from the potato plant.Which statement best describes this scenario?

A
The potato plant is parasitic.
B
The dodder plant is a host.
C
The potato plant stays alive because of the dodder.
D
The dodder plant stays alive because of the potato plant.
17

When a volcano erupts, particles of rock and ash are released into the atmosphere. After this, water droplets form around the rock and ash particles and fall to Earth as rain. The rainwater helps plants grow.In this scenario, which spheres of Earth interact?

A
biosphere, cryosphere, hemisphere
B
cryosphere, geosphere, biosphere
C
geosphere, hydrosphere, biosphere
D
hydrosphere, cryosphere, geosphere
18

Which part of Earth is included in the hydrosphere?

A
air
B
animals
C
glaciers
D
rocks
19

The diagram illustrates part of the carbon cycle.

Question illustration
A
A consumer is obtaining carbon by breathing it in from the atmosphere.
B
A consumer is obtaining carbon by absorbing it from the soil.
C
A consumer is obtaining carbon by eating carbon-based molecules stored in a producer.
D
A consumer is obtaining carbon by eating carbon-based molecules stored in a decomposer.
20

Cleo has a vegetable garden and wants to increase the amount of nitrogen in the soil.How can she most likely do this?

A
add several soybean plants to her garden
B
decrease the amount of fertilizers she uses
C
harvest the vegetable plants continuously
D
reduce the number of decomposers that live in the soil

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