Many food chains together create a food web.
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Answer:
3
Explanation:
calcium (Ca)
carbon(C)
oxygen(O)
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Answer:
(D) Neither I nor II
Explanation:
The reagent potassium hydrogen phthalate is found in pure form and it is not partially hydrated .
The pallet form of NaOH ( solid form ) absorbs carbon dioxide gas from the atmosphere but NaOH in solution form does not absorb carbon dioxide .
Hence option D ) is right choice .
Answer:
A hurricane,tornado,wind, rain.
Explanation:
Those are examples of a natural process which impact and ecosystem.
The most damaging event is B) introduction of a non-native animal species.
There are multiple cases in recorded history where invasive species have ruined ecosystems and even driven some species to extinction. An example of this is the dodo bird which went extinct due partially due to the invasion of rats into their habitats.
