NCERT Solutions for Chapter: Environmental Issues, Exercise 1: MULTIPLE-CHOICE QUESTIONS

Author:NCERT

NCERT Biology Solutions for Exercise - NCERT Solutions for Chapter: Environmental Issues, Exercise 1: MULTIPLE-CHOICE QUESTIONS

Attempt the practice questions on Chapter 16: Environmental Issues, Exercise 1: MULTIPLE-CHOICE QUESTIONS with hints and solutions to strengthen your understanding. NCERT Exemplar Biology - Class 12 solutions are prepared by Experienced Embibe Experts.

Questions from NCERT Solutions for Chapter: Environmental Issues, Exercise 1: MULTIPLE-CHOICE QUESTIONS with Hints & Solutions

MEDIUM
12th CBSE
IMPORTANT

Catalytic converters are fitted into automobiles to reduce the emission of harmful gases. Catalytic converters change unburnt hydrocarbons into

MEDIUM
12th CBSE
IMPORTANT

Why is it necessary to remove sulphur from petroleum products?

MEDIUM
12th CBSE
IMPORTANT

Which one of the following impurities is easiest to remove from wastewater?

MEDIUM
12th CBSE
IMPORTANT

Which one of the following diseases is not caused due to contamination of water?

MEDIUM
12th CBSE
IMPORTANT

Nuisance growth of aquatic plants and bloom-forming algae in natural water bodies is generally due to high concentrations of

MEDIUM
12th CBSE
IMPORTANT

Algal blooms impart a distinct colour to water due to:

MEDIUM
12th CBSE
IMPORTANT

Match the items in column I and column II and choose the correct option.

Column -I Column -II
A. UV i. Biomagnification
B. Biodegradable Organic Matter ii. Eutrophication
C. DDT iii. Snow blindness
D. Phosphates iv. BOD
The correct match is:

HARD
12th CBSE
IMPORTANT

We know "Three Mile Island and Chernobyl disasters associated with accidental leakage of radioactive wastes." In India, we had Bhopal gas tragedy. It is associated with which of the following?