PDF chapter test TRY NOW
Choose the correct answer:
A)
Statement 1 - Artificial ecosystem is the ecosystem that forms without the intervention of humans.
Statement 2 - Example of artificial ecosystem includes the paddy field
Statement 2 - Example of artificial ecosystem includes the paddy field
B)
Statement 1 - Food chain helps to understand the feeding relationships of organisms in an ecosystem.
Statement 1 - Food web is when many food chains are put together.
Statement 1 - Food web is when many food chains are put together.
C)
Statement 1 - Pollution occurs due to contamination of the environment through wastes, chemicals and other harmful substances.
Statement 2 - Air pollution is caused when soot and other fine particles are released into the atmosphere due to burning of fossil fuels like oil.
Statement 2 - Air pollution is caused when soot and other fine particles are released into the atmosphere due to burning of fossil fuels like oil.
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