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WorksheetsQ and A
Total questions: 16
Worksheet time: 8mins
What % of the earth surface is water?
50%
20%
70%
90%
Name three ocean predators?
shark, whale and octopus
corals, seaweed and starfish
starfish, sand and shark
sand, corals and whale
Which marine mammal user sonar?
Whale and Dolphins
Crab and fish
seahorse
loster
What is the must salty body of water on earth?
the dead sea
arctic ocean
Indian ocean
south Atlantic
What % of the earth surface if freshwater?
2%
8%
3%
10%
the world is split into how many oceans?
7
5
10
3
What is the salinity of typical ocean water?
50%
8%
10%
3.5%
Name three bottom dwellers?
Anglerfish, fish and lobster
crab, lobster and squid
whale, seahorse and whales
seaweed, crab and shrimp
what two gases comprise the atmosphere?
Nitrogen and oxygen
carbon and Dioxide
Methane gas
acetylene
What percentage are they?
oxygen 20% and 70% nitrogen
10% carbon and 50% dioxide
100% air
What gas contributes to global warming?
carbon dioxide
smoke
nitrogen
What is the % of water in air called?
fog
water vapor
humidity
water
Which gas allows combustion to occur?
oxygen
carbon
dix
house
which gas is placed into potato chip bags?
oxygen
carbon dioxide
nitrogen
What is the lower- level cloud called?
cloud
Fog
grass
What protect the earth from the sun ray?
ozone layer
greenhouse
