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WorksheetsEnvironment Science-10
Total questions: 10
Worksheet time: 5mins
Which one of the following is a decomposer?
Earthworm
Snail
Bacteria
Leech
What percent of Land in Nepal is occupied by Lakes?
1.6
0.2
0.7
0.6
In which one the following is a lotic ecosystem is found?
Lake
Pond
Lake and pond
Stream
Which one of the following is a producer?
Hydrilla
Birds
Fishes
Mollusks
Which one of the following is a radio active element?
Copper
Iron
Lead
Radium
Which one of the following is a green house gas?
Oxygen
Nitrous Oxide
Nitrogen
Argon
Which one of the following heavy metal is hazardous to our health?
Aluminium
Silver
Gold
Lead
When was United Nations Environment Programme (UNEP ) established?
1970
1972
1922
1982
In which layer of atmosphere is Ozone layer found?
Troposphere
Mesosphere
Thermosphere
Stratosphere
Which of the following green house gas is produced by ruminant animals during chewing cud?
CH4
N2O
CO2
CFCs
