4.It is the relationship between biotic and abiotic factors in a certain place.
a. ecosystem
b. estuaries
c. salinity
d. brakish
5.Non-living factors in the environment.
a. biotic
b. abiotic
c. intertidal
d. waves
6.An amount of salt water.
a. salt
b. salinity
c. biotic
d. abiotic
7._________refers to the abundance of different living organisms living i have the area.
a. rocky shores
b. biodiversity
c. mud
d. tides
8.Why estuaries are important?
a. they filter dirt before freshwater enter the seas or oceans
b. they make mud
c. it fertile soil
d. can break waves
9.What kind of fertilizer we must used ti protect and conserve our environment?
a. synthetic fertilizer
b. colored
c. natural fertilizer
d. inorganic
10.What is the vital habitat on earth of different kinds of living things?
a. intertidal zone and estuaries
b. canal ang dike
c. bulding and grass
d. animals and fishes
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