Home
Class 10
BIOLOGY
Assertion (A): Polythene bags and plasti...

Assertion (A): Polythene bags and plastic containers are non-biodegradable substances.
Reason (R): They can be broken down by micro organisms in natural simple harmless substances.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

B

Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.

C

Assertion is true but Reason is false.

D

Assertion is false and Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C

Substances like polythene bags and plastics are non-biodegradable because they cannot be broken down by micro organisms into simpler harmless substance in nature. Substances that can be broken down by micro-organisms in natural simple harmless substances are biodegradable substances.
Promotional Banner

Topper's Solved these Questions

  • OUR ENVIRONMENT

    OSWAL PUBLICATION|Exercise CASE-BASED MCQs|51 Videos
  • OUR ENVIRONMENT

    OSWAL PUBLICATION|Exercise SELF ASSESSMENT - 1 (OBJECTIVE TYPE QUESTIONS (MULITIPLE CHOICE QUESTIONS))|3 Videos
  • OUR ENVIRONMENT

    OSWAL PUBLICATION|Exercise BOARD CORNER ( SHORT ANSWER TYPE QUESTIONS)|8 Videos
  • OLYMPIAD 2019 - 20

    OSWAL PUBLICATION|Exercise BIOLOGY QUESTIONS (Why Do We Fall III)|1 Videos
  • REPRODUCTION

    OSWAL PUBLICATION|Exercise BOARD CORNER (Long Answer Type Question)|9 Videos

Similar Questions

Explore conceptually related problems

Assertion (A): Wastes such as plastics, paper, vegetable or fruit peels, which are generated in our house daily are biodegradable. Reason (R): Biodegradable wastes can be broken down into simpler, harmless substance in nature in due course of time by the biological processes such as action of microorganisms.

Assertion (A) Most of the synthetic polymers are not biodegradable Reason (R ) Polymerisation process induces toxic character in organic molecules

___ wastes can be broken down into simpler substances by decomposers.

Assertion (A): The enthalpy of both graphite and diamond is taken to be zero, being elementary substances Reason (R ) : The enthalpy of formation of an elementary substance in any state is taken as zero.

Assertion (A) : Antiferromagnetic substances on heating to high temperature become paramagnetic. Reason (R ) : On heating, the randomization of spins occurs.

Some substances cannot be broken down in nature. What are they called?

Assertion (A): Methanogens do not produce oxygen. Reason (R) : Methanogens are obligate anaerobic micro-organisms.