19.
The total organic matter present in an ecosystem is referred as
Answer : A. Biomass
20.
Body Builders are
Answer : A. Protein
21.
Epoxy resins are used as
Answer : C. adhesive
22.
Orange is a source of
Answer : C. Vitamin C
23.
Fresh foods and fruits contain more of
Answer : A. proteins
24.
If water pollution continues at its present rate it will eventually
Answer : C. makes O2 molecule unavailable to water plant