MEDIUM
10th CBSE
IMPORTANT
Earn 100

Explain the phenomenon of ”biological magnification". How does it affect organisms belonging to different trophic levels, particularly the tertiary consumers?

Important Questions on Our Environment

MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 2
Why bacteria and fungi are called decomposers? List any two advantages of decomposers to the environment.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 3
"Energy flow in a food chain is unidirectional”. Justify this statement. Explain how the pesticides enter a food chain and subsequently get into our body?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 4
What is meant by food chains? ” The number of trophic levels in a food chain is limited”. Give a reason to justify this statement.
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 2
The _____ decomposers break down dead plants and animals into simpler substances.
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 4
Raymond Lindeman gave a law called the _____. (1% law of ecology/10% law of ecology)
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 6
_____ was formulated in the year 1989 with a strong aim to stop the usage of CFCs.
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 7
_____ decompose the plant waste and help keep the environment clean. (Parasites/Saprotrophs)
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 5 - Our Environment>EXERCISE>Q 9
Flow of _____ in an ecosystem is depicted using a number pyramid.