Which colour is formed when Red and Green are mixed?
Light Blue
Yellow
White
Grey
B.
Yellow
Soil having high content of aluminum and iron oxide is also known as ________.
meadow soil
pedalfer soil
chernozen soil
podzols soil
Which among the following is a major cause of acid rain?
Carbon dioxide
Carbon monoxide
Nitrogen dioxide
Oxygen
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
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