Answer 1313

Why is confidence important for students?

4 year ago
Rahila Ahmed
Rahila Ahmed

What is the main function of human heart?

4 year ago
Rahila Ahmed
Rahila Ahmed

Photochemical smog is related to the pollution of -----

(a) soil

(b) water

(c) noise

 

(d) air

4 year ago
pradeep negi
pradeep negi

Water pollution is mainly caused by ----

(a) decay of bodies of aquatic animals

(b) industrial effluents

(c) excessive rain

(d) growth of phytoplankton

4 year ago
pradeep negi
pradeep negi

Which one of the following is a greenhouse gas?

(a) carbon dioxide

(b) carbon monoxide

(c) ozone

(d) oxygen

4 year ago
pradeep negi
pradeep negi

The most dangerous metal pollutant of automobile exhaust is---

(a) cadmium

(b) silver

(c) lead

 

(d) manganese

4 year ago
pradeep negi
pradeep negi
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