J.K. Chopra Solutions for Chapter: People and Environment, Exercise 3: PRACTICE EXERCISE
J.K. Chopra Teaching and Research Aptitude Solutions for Exercise - J.K. Chopra Solutions for Chapter: People and Environment, Exercise 3: PRACTICE EXERCISE
Attempt the free practice questions on Chapter 9: People and Environment, Exercise 3: PRACTICE EXERCISE with hints and solutions to strengthen your understanding. CBSE UGC (NET/SET/JRF) Paper I solutions are prepared by Experienced Embibe Experts.
Questions from J.K. Chopra Solutions for Chapter: People and Environment, Exercise 3: PRACTICE EXERCISE with Hints & Solutions
Some pollutants are
1. Carbon monoxide
2. Nitrogen dioxide
3. Ethylene
4. Lead tetraethyl
5. Sulphur-dioxide
6. Unburnt hydrocarbons
7. Partially oxidized products of form aldehyde and acetaldehyde
In the above question, toxic pollutants of automobile exhaust in these are
Sulphurous smog is
In a photochemical smog, which gas causes eye and mucous membrane irritant?
The main component of photochemical smog is/are:
PAN (Peroxyacylnitrate) is a secondary pollutant and is found in
Which organism's case of colour changed after the industrial revolution and is quoted as the most striking example of 'Industrial melanism and natural selection as a result of environmental change'?
Industrial melanism [Occurrence of melanic (black) forms in an industrial area] was studied in Britain in an insect (peppered moth), which is
The peppered moth population (Biston betularia) in England changed from Dark andLight between to . The selective agent causing the change was
