Particulate Model
States of Matter
Expansion & Contraction
Changes in Matter I
Changes in Matter II
100
A population is made up of organisms of the same kind. True or false?
True
100
Organisms generally can live in environments with wide ranging pH values. True or false?
False – Most organisms cannot survive in environments that are too acidic or too alkaline.
100
Earthworms are not decomposers. True or false?
True – Earthworms are scavengers
100
Desertification is a process where land is burned for agriculture. True or false?
False – It is a process where fertile land becomes a desert (barren area)
100
Breathing is the process of taking in carbon dioxide and giving out oxygen. True or false?
False – Oxygen is taken in and carbon dioxide is given out.
200
Mangroves, grassland and water puddles are examples of ecosystems. True or false?
False – water puddle is not
200
Carnivores are abiotic components of an ecosystem. True or false?
False – Abiotic refers to the environmental factors, not living things
200
Energy can be recycled in the ecosystem. True or false?
False – Energy is lost to the environment as heat
200
Cholera is an infection caused by drinking contaminated water containing a virus. True or false?
False – It is caused by bacteria
200
Heat is released during respiration. True or false?
True.
300
When organisms interact with the environment and other organism, it is called a/an......
ecosystem.
300
What is the biotic environment?
All living things / organisms in a habitat.
300
An organism that makes its own food is known as a/an...
producer.
300
Protecting and preserving the environment is known as.......
conservation
300
What is the main purpose of respiration?
Release energy stored in food for cells.
400
When different populations live together and interact in the same area, they form a/an......
community.
400
A relationship where both organisms benefit from each other.
Mutualism.
400
What is the percentage of energy transferred from primary consumer to secondary consumer?
10%
400
Give an example of a natural cycle.
Water cycle / nitrogen cycle / carbon cycle etc.
400
Name the raw materials of photosynthesis.
Carbon dioxide and water.
500
What is a habitat?
A place where an organisms lives.
500
What does the Greek word 'bio' mean?
Life
500
What is a trophic level?
It is a stage in the food chain / Position of an organism in the food chain.
500
What is the Kyoto Protocol about?
Reduction of greenhouse gas emission by countries.
500
What is the name of the carbohydrate first formed during photosynthesis?
Glucose.
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