WorksheetsSci Quiz no.(3)
Total questions: 15
Worksheet time: 45mins
Name
Class
Date
1.
1. all the following pollute the water except.......
a)
human wastes
b)
plastic wasts
c)
sunlight
d)
animal wastes
2.
2. if clam are completely removed from a marine ecosystem the survival of ......... may be affected
a)
triggerfish
b)
sharks
c)
sea urchin
d)
sea stars
3.
3. if the amount o grasses increases in an ecosystem this directly increases the number of.........
a)
caracals
b)
hawks
c)
rabbits
d)
lions
4.
4. the sun provides the earth with.........
a)
light only
b)
warm only
c)
light and warm
d)
light and sound
5.
5. overfishing and throwing plastic wastes in the sea affect the survival of .......
a)
desert organisms
b)
marine organisms
c)
rainforest organisms
d)
rodents
6.
6. in the food chain the energy transfer....
a)
from predator to prey
b)
from prey to predator
c)
from producer to consumer
d)
from consumer to producer
7.
7. if all grasses were removed completely from an ecosystem rabbits in this ecosystem will........
a)
increase
b)
decrease
c)
die
d)
not be affected
8.
8. it is better for predator in a food web to have
a)
only one type of decomposers
b)
more than one type of decomposer
c)
more than one type of prey
d)
only one type of prey
9.
9. the secondary consumer is considered as ........
a)
a prey for primary and tertiary consumers
b)
a predator for primary
c)
a prey of primary consumer
d)
a predator for tertiary consumer
10.
10. as a result of ecosystem pollution number of organisms ...........
a)
decreases
b)
increases
c)
doesn't change
d)
is doubled
11.
11. if The climate change is suitable the population of species ...........
a)
will die
b)
will not be affected
c)
will increase
d)
will decrease
12.
12. all the following statements are correct except......
a)
small fish can eat sea birds
b)
sharks can eat small fish
c)
small fish can't eat seabird
d)
seabirds can't eat sharks
13.
13. healthy marine environment is important for
a)
humans
b)
fish
c)
deer
d)
lizards
14.
14. when water temperature increases algae leave tissues of .......so they become bleached
a)
seabirds
b)
coral reefs
c)
clam
d)
sharks
15.
15. sea turtles and ................ are from food chain of marine life
a)
jellyfish
b)
tigers
c)
eagles
d)
deers
100 %
