Photochemical smog always contains

Important Questions on People and Environment

EASY

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 64

Classical smog is

EASY

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 65

Sulphurous smog is

EASY

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 66

In a photochemical smog, which gas causes eye and mucous membrane irritant?

MEDIUM

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 67

The main component of photochemical smog is/are:

EASY

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 68

PAN (Peroxyacylnitrate) is a secondary pollutant and is found in

MEDIUM

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 69

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'?

MEDIUM

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 70

Industrial melanism [Occurrence of melanic (black) forms in an industrial area] was studied in Britain in an insect (peppered moth), which is

MEDIUM

UGC NET Paper 1

IMPORTANT

CBSE UGC (NET/SET/JRF) Paper I>Chapter 9 - People and Environment>PRACTICE EXERCISE>Q 71

The peppered moth population (Biston betularia) in England changed from$1\%$ Dark and$1\%$Light between$1848$ to $1898$ . The selective agent causing the change was