EASY
10th CBSE
IMPORTANT
Earn 100

Write the common food chain of a pond ecosystem.

Important Questions on Our Environment

MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 9
Which of the following belonging to a food chain is likely to have maximum concentration of harmful chemicals in its body?
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 10
Which two of the following belong to the same trophic level?
(a) Grasshopper, Frog, Grass, Lizard (b) Goat, Grass. Crow, Squirrel.
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 11

Rearrange the following according to their ascending trophic levels in a food chain:

Hawk, Grass, Snake, Rabbit.

MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 12

In the following food chain, 20J of energy was available to the hawk. How much energy would have been present in the plants?

Plants → Rats → Snake → Hawk

EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 13
What is meant by the term environment?
EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 14
Name any two abiotic components of an environment.
EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 15
What are the two main components of our environment?
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 16
Which of the following materials are non-biodegradable?
(a) Paper, leather, nylon, eggshell, glass
(b) Tea leaves, glass, glucose, cotton cloth, silver foil
(c) Glass, glucose, leather, silver foil, nylon cloth