Which of the following is the biggest source of energy in an ecosystem?
a) sun
b) air
c) water
d) soil
The ……..make food with the help of sunlight, carbon dioxide and water.
a) plants
b) animals
c) both a and b
d) none of these
Which of these shows the correct food chain in an environment?
a) Sun
b) Sun
c) Sun
d) Sun
During respiration, animals produce…………..
a) oxygen
b) carbon dioxide
c) hydrogen
d) nitrogen
Animals that eat only plants are called………
NTS
PST 15/12/2019
(3:00)
a) herbivores
b) decomposers
c) omnivores
d) none of these
Herbivores?
a) cater pillar, cow
b) monkey, human
c) lion, eagles
d) none of these
