Ozone Depletion

Which of the following statements above about ozone are not true?
a) Ozone is formed in the stratosphere.
b) Ozone is good in the troposphere and bad in the stratosphere.
c) Ozone depletion is maximum near poles.>

The Montreal protocol refers to

Ozone hole means:

Depletion of the ozone layer may cause:

I. Skin cancer

II. Meningitis

III. Snow-blindness

IV. Lung cancer

Montreal Protocol is a global agreement to

Which of the following is not an effect of depletion of stratospheric ozone?

Every year between late August and early October, ozone hole is observed over

How many of the following effects is/are not related to ozone layer depletion?

a. DNA damage and mutation
b. Ageing of skin
c. ${\mathrm{CO}}_2$ fertilisation effect
d. Damage to cornea
e. Snow-blindness
f. Cooling of troposphere

Recognising the deleterious affects of ozone depletion, an international treaty, known as _____ was signed at _____ .

Snow blindness is caused by

Which one of the following was the objective of signing the 'Montreal protocol'?

Select incorrect match

Match the columns

Which of the following is correct?

Snow blindness is caused by

Recognizing the deleterious effects of ozone depletion an international treaty known as _____ was signed at _____

A chemical weed in troposphere and protectant in stratosphere is

Dobson units are used to measure thickness of:

Match the entries in columns I and II and choose the correct pairs from the choices below.