Free Printable Our Environment

Worksheets

Our Environment

Total questions: 17

Worksheet time: 11mins

Name

Class

Date

When is World Environment Day is celebrated?

5 February

5 August

5 June

5 may

What does a food chain always start with?

The herbivore

The carnivore

The producer

The consumer

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

What is the study of the interactions among organisms and between organisms and their environments called?

Biology

Ecology

Astronomy

Biosphere

The direction of the flow of energy in a food web is represented by ___.

Light bulbs

Dotted Lines

Arrows

Bubbles

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

10%

50%

90%

100%

Energy increases as you move up the food pyramid (from bottom to top).

True

False

What is this called?

Food Web

Food Chain

Abiotic Factors

Biotic factors

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

Owl

Grasshopper

Lilypad

Mouse

10.

All energy on Earth ultimately comes from what source?

Water

Sun

Consumers

Oxygen

11.

Why is there a limited amount of energy that can be passed on to the next feeding level?

There is never enough sunlight available.

Some ecosystems have limited resources.

Organisms use some of the energy they get from eating.

All the energy is available to be passed on.

12.

The largest group of organisms found in a food web would be:

Primary Consumers

Producers

Decomposers

Tertiary Consumers

13.

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?

Algae

Mayfly

Minnow

Trout

14.

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

Biotoxicity

Biomagnification

Eutrophication

Predation

15.

What does the Ozone in the atmosphere do?

causes the greenhouse effect

causes acid rain

protects the Earth from harmful infrared (IR) rays

protects the Earth from harmful ultraviolet (UV) rays

16.

What is causing damage to the Ozone layer?

Methane

Carbon dioxide

CFCs

All of the above

17.

What damage can UV rays cause?

can cause sunburn.

can cause some types of skin cancer.

cataracts.

all of the above

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Our Environment

Total questions: 17

Worksheet time: 11mins

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