Our Environment Worksheet - Class 7 Footprints Book Solutions, Notes

Multiple Choice Questions (MCQs)

Q1: What does the word "environment" derive from?
(a) Latin word "environs"
(b) Greek word "environ"
(c) French word "environer"
(d) German word "umgebung"
Ans: (c) French word "environer"
The word "environment" originates from the French word "environer," meaning 'to surround.'

Q2: Which of the following is NOT a component of the natural environment?
(a) Lithosphere
(b) Biosphere
(c) Hydrosphere
(d) Anthrosphere
Ans: (d) Anthrosphere
The anthrosphere refers to the human-made environment, not the natural components.

Q3: What does the abiotic environment primarily consist of?
(a) Living organisms
(b) Non-living things
(c) Plants and animals
(d) Decomposers
Ans: (b) Non-living things
The abiotic environment comprises non-living elements such as soil, water, and air.

Q4: Which sphere comprises the living organisms in the natural environment?
(a) Hydrosphere
(b) Biosphere
(c) Lithosphere
(d) Atmosphere
Ans: (b) Biosphere
The biosphere includes all living organisms and their interactions within the environment.

Q5: What is an ecosystem defined as?
(a) Only living elements in a habitat
(b) Only physical elements in a habitat
(c) Interactions between living and non-living elements
(d) The atmosphere of a particular region
Ans: (c) Interactions between living and non-living elements
An ecosystem is formed by the interactions between living organisms and their physical environment.

Fill in the Blanks

Q1: The abiotic environment is primarily composed of ________ things.
Ans: Non-living

Q2: The biosphere extends from the bottom of the ocean to the top of the highest ________.
Ans: Mountains

Q3: Decomposers are organisms responsible for the breakdown of dead ________ and plants.
Ans: Animals

Q4: An ecosystem consists of both living (biotic) and ________ (abiotic) components.
Ans: Non-living

Q5: The human environment encompasses human beings and their ________.
Ans: Activities

True or False

Q1: The lithosphere, hydrosphere, and atmosphere are all components of the abiotic environment. (True/False)
Ans: True
The abiotic environment includes these physical components of the Earth.

Q2: Producers are organisms that cannot prepare their own food. (True/False)
Ans: False
Producers, such as green plants, can prepare their own food through photosynthesis.

Q3: The biosphere comprises only living organisms. (True/False)
Ans: False
The biosphere includes both living organisms and their physical environment.

Q4: An ecosystem is formed solely by living organisms. (True/False)
Ans: False
An ecosystem is formed by interactions between living and non-living elements.

Q5: Human activities have never disrupted the harmony between humans and nature. (True/False)
Ans: False
Human activities, such as urbanization and deforestation, have often disrupted the harmony with nature.

Match the Column

Match the terms with their corresponding descriptions:

Answers:

• Biotic - Living components of the environment
• Abiotic - Non-living components of the environment
• Producers - Organisms that can prepare their own food
• Decomposers - Organisms responsible for breaking down dead matter
• Biosphere - Includes both biotic and abiotic components