DOWNLOAD MOBILE APPLICATION TO LEARN MORE: PSTET PAPER 1 MOCK TEST
131. The presence of which is necessary for photosynthesis .
(a) Chloroform
(b) Chlorophyll
(c) Phosphorus
(d) Polymer
Answer – c
132. Plants adapted to open, sunny habitats are
(a) Sciophytes
(b) Heliophytes
(c) Mesophytes
(d) Epiphytes
Answer – c
133. The relationship between nitrogen fixing bacteria and leguminious plants is an example of
(a) Parasitism
(b) Commenssalism
(c) Mutualism
(d) Symbiosis
Answer – c
134. Thorn-forests are found in the ______ regions.
(a) Semi- arid
(b) high rain fall areas
(c) low temperature
(d) frozen areas
Answer – c
135. Complex interlinked food chains are called
(a) Food Web
(b) Food net work
(c) Trophiclevels
(d) Food pyramid
Answer – c
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: PSTET PAPER 1 MOCK TEST
136. The source of atmospheric oxygen is
(a) Nitrogen cycle
(b) Green plants
(c) Water
(d) Carbon Cycle
Answer – c
137 . Phytoplankton are _______ .
(a) Producers of forest
(b) producers of lakes
(c) Consumers of ocean
(d) Omnivores
Answer – c
138 . The major reservoir of carbon is
(a) The atmosphere
(b) Ocean Bed
(c) Plant and animals
(d) Rock
Answer – c
139. What is edge species?
(a) The species which occur abundantly in the ecotone.
(b) Species on the verge of extinction
(c) Rare Species
(d) Endemic species
Answer – c
140. The inherent ability of organisms to reproduce and multiply is called.
(a) C Value
(b) Biotic potential
(c) Carrying capacity
(d) K Value
Answer – c
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: PSTET PAPER 1 MOCK TEST