PES UNIVERSITY
(Established under Karnataka Act No.16 of 2013
100 Feet Ring road,BSK III Stage, Bangaluru - 560085
MCQS
UNIT I
1. What are “keystone species”?
a. Species which cannot undergo evolution
b. Species which does not affect ecosystem
c. Species if eliminated seriously affect the ecosystem
d. Species which are evolving presently
2. Which of the following is a microconsumer?
a. Humans
b. Plants
c. Arthropods
d. Fungi
3. Which is a secondary consumer in the Food Web of organisms residing in the Green land?
a. Vulture
b. Carnivores
c. Herbivores
d. Detritus feeders
4. Which is not a renewable source?
a. Coal
b. Wind
c. Solar
d. Geothermal
5. Which type of coal has more than 90% carbon?
a. Peat
b. Bituminous
c. Lignite
d. Anthracite
6. Which type of energy harnesses heat from the Earth?
a. Geothermal
b. Hydroelectric
c. Nuclear
d. Solar
7. Which is a natural disaster?
a. Nuclear
b. Chemical
c. Drought
