Which among the following is a major cause of acid rain?
Carbon dioxide
Carbon monoxide
Nitrogen dioxide
Oxygen
Which of the following gas was released during Bhopal gas tragedy?
Methyl isocyanate
Sodium isothiocyanate
Nitrogen isothiocyanate
Potassium isothiocyanate
Which of the following gas contributes the maximum to the phenomena of global warming?
Methane
Chlorofluorocarbon (CFC)
Nitrogen dioxide
Carbon dioxide
Soil having high content of aluminum and iron oxide is also known as ________.
meadow soil
pedalfer soil
chernozen soil
podzols soil
Match the following:
Scientist | Invention |
1. Joseph Thomson | a. Optical Fiber |
2. Alexander Fleming | b. Radium |
3. Narinder Kapany | c. Electron |
4. Marie Curie | d. Penicillin |
1 - c, 2 - d, 3 - a, 4 - b
1 - a, 2 - d, 3 - c, 4 - b
1 - c, 2 - a, 3 - d, 4 - b
1 - a, 2 - d, 3 - b, 4 - c