Biosphere
Industrial waste contains highly toxic elements such as lead, mercury, arsenic and
Cadmium
Cobalt
Boron
Antimony
Cadmium
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Which ecosystem is important in purifying air, recycling water and controling climate?A. Man subsidized solar power ecosystem
B. Fuel power ecosystem
C. Naturally subsidized solar powered ecosystem
D. Unsubsidized natural solar powered ecosystem
Running water is called
A. Lentic
B. Lotic
C. Standing water
D. Streams
What are examples of lotic water?
A. Streams, river and springs
B. River, Lake and Ponds
C. Swamps and Lakes
D. Lakes and ponds
What did spread Plague in middle age ?
A. Cats
B. Rats
C. Dogs
D. Insects
What are materially closed ecosystem?
A. Algae
B. Folsom Bottles
C. Microorganisms
D. Plants
‘Abiotic’ community cannot live in
A. Polluted environment
B. Isolation
C. Without sunlight
D. Hydrosphere
What are examples of unsubsidized natural solar powered ecosystem?
A. Machines
B. Forests, Oceans and Grasslands
C. Houses
D. Industries
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