EASY
10th CBSE
IMPORTANT
Earn 100

Name a material which can lead to biomagnification. (DDT/ Manure/ Biofertilizer).

28.57% studentsanswered this correctly

Important Questions on Our Environment

EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 14
Name any two artificial ecosystems.
EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 15
Which category of organisms forms the first step of a food chain. (Producers/ consumers/ decomposers)
EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 16
What are the various steps of a food chain called?
EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 17
What name is given to the network of food chains?
EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 18
Name two groups of organisms which act as decomposers in an ecosystem.
EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 19
What type of waste plastic, polythene and pesticides are?
EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 20
To which category of components the gas Freon belongs? (Write its full form).
EASY
10th CBSE
IMPORTANT
SCIENCE BIOLOGY Class-10>Chapter 5 - Our Environment>LET US PRACTICE MORE>Q 21
What protects the biotic communities of ecosystems from damaging effects of ultraviolet rays?