Man and Environment

Man and Environment
The perfect biogeochemical cycle is
nitrogen cycle
sulphur cycle
carbon cycle
oxygen cycle
Author: rikazzz Comment
Man and Environment
A group of organisms of the same species inhabiting a specific region at a certain time is called
population
ecosystem
biosphere
community
Author: rikazzz Comment
Man and Environment
Considering the Earth’s ecosystem, the producers are called
autotrophs
heterotrophs
tertiary autotrophs
secondary autotrophs
Author: rikazzz Comment
Man and Environment
The type of symbiosis the smaller partner harms the larger partner and derives food from its body is called
parasitism
mutualism
demonism
commensalism
Author: rikazzz Comment
Man and Environment
The methane (CH₄), carbon dioxide (CO₂) and ozone (O₃) are classified as
co-dominance gases
dominance gases
greenhouse gases
acidic gases
Author: rikazzz Comment
Man and Environment
The insecticide sprays are not used to kill mosquitoes as they cannot penetrate all the habits of
adult
old
young
small
Author: rikazzz Comment
Man and Environment
The organisms that are capable to synthesize organic compounds into simple raw materials are called
tertiary consumers
producers
primary consumers
secondary consumers
Author: rikazzz Comment
Man and Environment
An organism that can not survive without any host is
prey
predator
virus
parasite
Author: rikazzz Comment
Man and Environment
The living part of the ecosystem is made by
air and water
soil and water
abiotic components
biotic components
Author: rikazzz Comment
Man and Environment
The cyclic pathways through which materials move back from the environment to organisms and organisms to the environment are called
chemical cycles
biosphere cycles
geological cycles
biogeochemical cycles
Author: rikazzz Comment

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