English

The chemicals leading to the formation of ozone holes. - Biology

Advertisements
Advertisements

Question

The chemicals leading to the formation of ozone holes.

Answer in Brief
Advertisements

Solution

Chloroflurocarbons/CFCs

shaalaa.com
  Is there an error in this question or solution?
Chapter 13: Pollution - Name the Following

APPEARS IN

ICSE Biology [English] Class 10
Chapter 13 Pollution
Name the Following | Q 6

RELATED QUESTIONS

How depletion of the ozone layer affect living organisms?


Fill in the following blank with suitable word :

Ultraviolet rays can cause skin..............


What are the causes of depletion of ozone layer? Which diseases are likely to be caused if the ozone layer will become thinner?


What would happen if the ozone layer in the atmosphere completely disappears?


 “Damage to the ozone layer is a cause of concern”. Justify this statement.


Name or state the following:

An atmospheric pollutant responsible for both global warming and ozone depletion.


Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.

  1. Identify Gas A. How is it formed at higher levels of the atmosphere?
  2. Why is it essential for all living beings? State the cause for the depletion of this gas.

Why is ozone layer getting depleted at the higher levels of the atmosphere? Mention one harmful effect caused by its depletion.


In 1987, the United Nations Environment Programme (UNEP) forged an agreement to freeze the production of a certain chemical to the year 1986 level. Name the chemical and the manufacturing companies m which this chemical was being mostly used.

In what way this chemical damage -

  1. the upper layers of the atmosphere and ultimately
  2. the organisms on the earth.

In 1987, an agreement was formulated by the United Nations Environment Programme (UNEP) to freeze the production of “X” to prevent the depletion of “Y”. “X” and “Y” respectively referred to here are ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×