What can be the effects of global warming?
- melting of ice
- increase in soil erosion
- loss in biodiversity
- all of the above
What can be the preventive measures of global warming?
- restricting the use of CFC's
- controlling deforestation
- melting of ice caps
- both a&b
Consequences of acid rain can be-
- it irritates eyes and skin
- inhibits germination of seedlings
- causes corrosion of many buildings
- all of the above
Which of the following is true about oxygen?
- Completely burning gas
- Partially burning gas
- Doesn’t support burning
- Supports burning
Solvay process is a method to manufacture
- lime water
- aerated water
- distilled water
- sodium carbonate
Carbon dioxide with water changes
- blue litmus to red
- red litmus to blue
- blue litmus to yellow
- doesn't react with litmus
Which of the following is known as azote?
- oxygen
- nitrogen
- sulphur
- carbon-di-oxide