info@avatto.com
+91-9920808017
36. A group of inter-connected food chains is called (NTSE Chhattisgarh, Stage-I, 2015-16)
Food cycle
Pyramid of energy
Complex food chain
Food web
Your email address will not be published. Required fields are marked *
Report
Name
Email
Website
Save my name, email, and website in this browser for the next time I comment.
Comment
37. The human made synthetic chemical used in refrigerator is (NTSE Rajasthan, Stage-I, 2015-16)
LPG
CFC
CH4
PVC
38. Excessive exposure of human to UV rays result in (i) Damage to immune system (ii) Damage to lungs (iii) Skin cancer (iv) Peptic ulcers (NTSE Chandigarh, Stage-I, 2015-16)
(i) and (ii)
(ii) and (iv)
(i) and (iii)
(iii) and (iv)
39. Which of the following shows a modern technology measure used to preserve and conserve the environment? (NTSE Stage-II, 2010-11)
Practising crop rotation
Using leaded petrol in motor vehicles
Using machines in agricultural industry
Converting biological wastes into biogas
40. Figure below shows the position of layer P in the Earth's atmosphere that protects the Earth from over-exposure to harmful ultraviolet radiation. Which of the following chemicals cause the hinning of layer P? (NTSE Stage-II, 2008-09)
Which of the following chemicals cause the hinning of layer P? (NTSE Stage-II, 2008-09)
Carbon monoxide
Sulphur dioxide
Chlorofluorocarbons
Both (1) and (3)
Login with Facebook
Login with Google
Forgot your password?
Lost your password? Please enter your email address. You will receive mail with link to set new password.
Back to login