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Worksheetsgrade 4 , lessob 4&5
Total questions: 20
Worksheet time: 10mins
Both of human and fish
can breathe in air.
can breathe in water.
use oxygen gas to breathe in.
use carbon dioxide gas to breathe in.
Fish use........... to breathe in water.
tail
eyes
Gills
Gills differ from lungs, in that gills
take in oxygen gas.
extract oxygen gas from water.
Gills in fish are considered as
behavioral adaptation.
camouflage adaptation.
structural adaptation.
behavioral and structural adaptations.
All of the following human activities can negatively affect the nature, except
cutting down forests.
farming and clearing lands.
removing air pollutants.
throwing wastes in waterways.
Human activities and bad habits of an ecosystem. can pollute
air and soil only
soil and waterways only
air and waterways only
air, soil and waterways
Pollution of an ecosystem can affect...........
plants and animals only.
animals and humans only.
humans and plants only.
plants, animals and humans.
If the environment is slowly changed, plants.......... to survive and grow.
must have a taproot
must have buttress roots
must decrease their adaptation
must land their seeds in another better place
From the negative effects of human activities on the human health are ...........
lung damage and asthma.
asthma and wounds.
heart problems and wounds.
lung damage and wounds.
Human can help restoring ecosystem by all of the following activities, except
replanting the cleared forests.
removing air and water pollutants.
producing more factories exhausts.
preserving existed plants and animals.
Amphibians are adapted to live in that suits their adaptation.
dry environment
moist environment
arctic environment
sandy environment
Starred agama and salamander,
both are reptiles.
both are amphibians.
the first is a reptile, while the second is an amphibian.
the first is amphibian, while the second is reptile.
If amphibians have gills and they don't have lungs and also cannot respire through skin, then
they cannot live outside water.
they can live outside water.
they cannot live under water.
they can live in desert landscapes.
Amphibians can take in oxygen gas from..........
water only.
air only.
food and air.
water and air.
In rainforests, we can find
panther chameleon and arctic foxes.
amphibians and fennec foxes.
arctic foxes and fennec foxes.
panther chameleon and amphibians.
If the number of an animal species becomes zero due to severe changes in its natural habitat, this means that this species
becomes endangered.
becomes extinct.
will survive.
going to be extinct.
Both humans and amphibians breathe in oxygen. Which of the following sentences is correct?............
Both can breathe in oxygen gas through lungs.
Both can take in oxygen gas through skin.
Humans can breathe in oxygen gas from water and air.
Amphibians can breathe in oxygen gas through gills.
Blood vessels that carry oxygen gas in amphibians, present in
skin and digestive system.
lungs and eyes.
digestive system and eyes.
skin and lungs.
Amphibians, lizards, trees, birds, fish and humans............
some of them need oxygen gas to respire.
some of them need carbon dioxide gas to respire.
all of them need oxygen gas to respire.
all of them need carbon dioxide gas to respire.
If a pond where some frogs live is highly polluted with wastes and viruses. What you have to do to preserve these frogs?............
Fill in the pond with sand.
Dry this pond from water.
Supply this pond with more oxygen gas.
Transfer these frogs to a clean water habitat.
