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our environment

Total questions: 80

Worksheet time: 49mins

Name
Class
Date
1.
Study of how living things interact with each other and with their nonliving environments
a)
Sustainability
b)
Ecology
c)
Environmental Science
d)
Renewable Resource
2.
Waste from our homes and factories are dumped into rivers, lakes, and seas, causing ____.
a)
Air pollution
b)
Water pollution
c)
Land pollution
d)
Waste
3.
Increasing levels of carbon dioxide in the air is believed to cause ___.
a)
Global Warming
b)
Water Pollution
c)
Non-biodegradable waste
d)
Recycling
4.
Another name for global warming is ___.
a)
Climate change
b)
Global Hotflash
c)
Solar Wind
d)
Climate Heating
5.
___ is waste obtained from plants and animals.
a)
Biodegradable waste
b)
Non-biodegradable waste
6.
What is the definition of Biotic factors?
a)
Dead things
b)
plants
c)
Living things or organisms
d)
soil
7.
What is the definition of Abiotic factors?
a)
Alive organisms or things
b)
Dead things or organisms
c)
panda
d)
insect
8.
What is a example of a abiotic factor?
a)
Panda
b)
Turtle
c)
Butterfly
d)
weather
9.
What is an example of a biotic factor?
a)
skunk
b)
rocks
c)
soil
d)
water
10.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
11.
Which of the following illustrates the correct ordering of trophic levels?
a)
decomposers-carnivores-autotrophs-herbivores
b)
herbivores-autotrophs-carnivores-decomposers
c)
autotrophs-herbivores-carnivores-decomposers
d)
carnivores-producers-omnivores
12.
Food chains are interconnecting food webs.
a)
true
b)
false
13.
What does every food chain start with?
a)
producers
b)
sun
c)
consumer
d)
decomposers
14.
An organism that gets energy from breaking down dead organisms, non-living material or waste is a(an) ___________.
a)
producer
b)
consumer
c)
decomposer
d)
autotroph
15.
Carbon is used by plants during which process?
a)
Respiration
b)
Transpiration
c)
Photosynthesis
d)
Transportation
16.
What is recycling?
a)
is to use materials again and again to make something new.
b)
is produce new brand products and sell them.
c)
is living in the developed world but taking care of the nature.
d)
is classify garbage in different colors.
17.

When is World Environment Day is celebrated?

a)

5 February

b)

5 August

c)

5 June

d)

5 may

18.

Which of the following is a primary consumer in a grassland ecosystem?

a)
b)
c)
d)
19.

What percentage of energy is passed on to next tropic level?

a)

10%

b)

50%

c)

90%

d)

100%

20.

What is this called?

a)

Food Web

b)

Food Chain

c)

Abiotic Factors

d)

Biotic factors

21.

Which organism recieves the least amount of energy from the producer?

a)

Owl

b)

Grasshopper

c)

Lilypad

d)

Mouse

22.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
23.

The phenomenon by which toxins concentrate in the organisms at higher trophic levels within an ecosystem is known as...

a)

Biotoxicity

b)

Biomagnification

c)

Eutrophication

d)

Predation

24.

Consider the following food chain:

Algae > Mayfly > Minnow > Trout


In a polluted ecosystem, which organism is likely to have the HIGHEST level of toxic chemicals in its body?

a)

Algae

b)

Mayfly

c)

Minnow

d)

Trout

25.

What damage can UV rays cause?

a)

can cause sunburn.

b)

can cause some types of skin cancer.

c)

cataracts.

d)

all of the above

26.

What is causing damage to the Ozone layer?

a)

Methane

b)

Carbon dioxide

c)

CFCs

d)

All of the above

27.

An artificial ecosystem is

a)

Pond

b)

Forest

c)

Desert

d)

Crop field

28.

Each step of a food chain is called as

a)

Trophic level

b)

Food web

c)

Eutrophication

d)

Biological magnification

29.

Which of the following constitute a food chain?

a)

Grass, tiger and ant

b)

Tiger, goat and human

c)

Goat, human and grass

d)

Human, fish and crab

30.

Calculate the amount of energy available to snake in the given food chain if there is 6500 J of energy available to grass hopper.

Grass ----> grass hopper ---> frog -----> snake

a)

6500 J

b)

650 J

c)

65 J

d)

6.5 J

31.

Why do we need to manage the garbage we produce

i)To improve the health and quality of life

ii)For preventing environmental pollution

iii) To produce more biodegradable plastics

iv) To reduce the strain on natural resources

a)

i and iv

b)

iii and ii

c)

i, ii and iii

d)

i,ii and iv

32.

Non biodegradable wastes can be managed by practicing techniques like

a)

Reduce Reuse Reabsorb

b)

Reduce reuse recycle

33.

___________________ are found as an alternative for plastics which are decomposed by microbial action.

a)

PVC

b)

Biodegradable plastics

c)

thermoplastic plastic

d)

thermosetting plastic

34.

When is World Environment Day is celebrated?

a)

5 February

b)

5 August

c)

5 June

d)

5 may

35.

What does a food chain always start with?

a)

The herbivore

b)

The carnivore

c)

The producer

d)

The consumer

36.

Which of the following is a primary consumer in a grassland ecosystem?

a)
b)
c)
d)
37.
What is the study of the interactions among organisms and  between organisms and their environments called?
a)
Biology
b)
Ecology
c)
Astronomy
d)
Biosphere
38.
The direction of the flow of energy in a food web is represented by ___.
a)
Light bulbs
b)
Dotted Lines
c)
Arrows
d)
Bubbles
39.
Energy increases as you move up the food pyramid (from bottom to top).
a)
True 
b)
False
40.

What percentage of energy is passed on to next tropic level?

a)

10%

b)

50%

c)

90%

d)

100%

41.

What is this called?

a)

Food Web

b)

Food Chain

c)

Abiotic Factors

d)

Biotic factors

42.

Which organism recieves the least amount of energy from the producer?

a)

Owl

b)

Grasshopper

c)

Lilypad

d)

Mouse

43.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
44.
Why is there a limited amount of energy that can be passed on to the next feeding level?
a)
There is never enough sunlight available. 
b)
Some ecosystems have limited resources. 
c)
Organisms use some of the energy they get from eating.
d)
All the energy is available to be passed on. 
45.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
46.

The phenomenon by which toxins concentrate in the organisms at higher trophic levels within an ecosystem is known as...

a)

Biotoxicity

b)

Biomagnification

c)

Eutrophication

d)

Predation

47.

Consider the following food chain:

Algae > Mayfly > Minnow > Trout


In a polluted ecosystem, which organism is likely to have the HIGHEST level of toxic chemicals in its body?

a)

Algae

b)

Mayfly

c)

Minnow

d)

Trout

48.

What does the Ozone in the atmosphere do?

a)

causes the greenhouse effect

b)

causes acid rain

c)

protects the Earth from harmful infrared (IR) rays

d)

protects the Earth from harmful ultraviolet (UV) rays

49.

What damage can UV rays cause?

a)

can cause sunburn.

b)

can cause some types of skin cancer.

c)

cataracts.

d)

all of the above

50.

What is causing damage to the Ozone layer?

a)

Methane

b)

Carbon dioxide

c)

CFCs

d)

All of the above

51.

What does a food chain always start with?

a)

The herbivore

b)

The carnivore

c)

The producer

d)

The consumer

52.

The region of the world of living thing is termed as

a)

Biosphere

b)

Ecosystem

c)

Food chain

d)

Food web

53.

What is the organic material of biological origin called?

a)

Biomass

b)

Bioenergy

c)

Biofuel

d)

Biogeochemical cycle

54.

In the animal, what are the foods that cannot be digested by most animals?

a)

Hair, feathers

b)

Muscles, veins

c)

Cartilage, bone

d)

Skin, intestines

55.

What is the layer of blanket that surrounds the earth surface called?

(a)  

56.

What is a place where living things live is known as?

(a)  

57.
What animal is on the top of the food chain? 
*Remember Humans are on the top of all food chains because we do not get hunted. 
a)
Grass
b)
Grasshopper
c)
Mouse
d)
Owl
58.

A connection of food chains with many food energy paths in an ecosystem is a (a)  

59.
Study of how living things interact with each other and with their nonliving environments
a)
Sustainability
b)
Ecology
c)
Environmental Science
d)
Renewable Resource
60.
Carbon is used by plants during which process?
a)
Respiration
b)
Transpiration
c)
Photosynthesis
d)
Transportation
61.
Food chains are interconnecting food webs.
a)
true
b)
false
62.
___ is waste obtained from plants and animals.
a)
Biodegradable waste
b)
Non-biodegradable waste
63.

The formula of ozone is

a)

O2

b)

O4

c)

O

d)

O3

64.

The functional unit of environment is known as

a)

Environment

b)

Ecosystem

c)

Carbon

d)

Oxygen

65.

Green plants and Algae are the examples of

a)

Producers

b)

Consumers

c)

Decomposers

d)

none

66.

..................is not a biodegradable pollutant.

a)

Paper

b)

Cotton Cloths

c)

Cotton

d)

DDT

67.

Which of the following is an abiotic components

a)

Animals

b)

Plants

c)

Microorganisms

d)

Soil

68.

Which gas is not responsible for global warming?

a)

CO2

b)

O3

c)

NO2

d)

N2

69.

The flow of energy in an ecosystem is always (a)  

70.

Accumulation of chemicals in subsequent tropic level is called...

(a)  

71.

(a)   gas is responsible for ozone layer depletion. (write short form)

72.

Which level of the food chain is most affected by biomagnifications?

a)

Producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

73.

Which member of the following food chain is most affected by DDT, a pollutant?


Algae --> small fish --> medium fish –-> hawks

a)

algae

b)

small fish

c)

medium fish

d)

hawks

74.

Why is an invasive species likely to survive in a new environment?

a)

A lack of predators

b)

An abundance of predators

c)

A lack of food

d)

A lack of space

75.

What is one of the greatest threats to biodiversity on Earth?

a)

habitat destruction

b)

loss of drinking water

c)

decrease in food supply

d)

biomagnification

76.

What is the cause of acid rain?

a)

Combustion

b)

Deforestation

c)

Water run off

d)

Bio-magnification

77.

What is Biodiversity?

a)

sum total of all the similar species found in an ecosystem

b)

total of differences in the same species in an ecosystem

c)

the variety of different organ systems within multicellular organisms

d)

sum total of all the different species found in an ecosystem

78.

What is Biomagnification?

a)

the growth of an organism over time

b)

the increase in concentration of harmful chemicals in organisms at higher levels in the food web

c)

the increase in population of a species over time

d)

the increased significance of a species roll in an ecosystem

79.

What is one way we can reduce human impact on the environment?

a)

Increase the use of CFCs

b)

Increase pollution prevention

c)

Decrease the use of conservation

d)

Decrease Endangered Species Protections

80.

The ozone layer protects against radiation. Radiation can lead to which of the following:

a)

decreasing Earth's temperature

b)

reducing risk of cancer

c)

limiting the amount of CO2 in the air

d)

causing mutations in DNA

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