A. Sulfur Dioxide and Potassium Nitrate
B. Sulfur and Charcoal
C. Nitrogen Oxide and Potassium Nitrate
D. Sulfur Dioxide and Nitrogen Oxide
1
About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is?
0
The fourth state of matter is?
A. Oxygen
B. Cabon Dioxide
C. Silicon
D. Clay
0
The device used to convert Alternate Current into Direct Current is called?
A. Water
B. Salts
C. Vapours
D. Plasma
0
In night, when photosynthesis is stopped, plants__________?
A. Anemometer
B. Battery
C. Galvanometer
D. Rectifier
7
__________ are called the powerhouses of the cell?
A. take in Carbon Dioxide
B. give off Oxygen
C. give off Carbon Dioxide
D. None of these
0
One of the countries through which equator passes is___________?
A. Mitochondria
B. Vesicles
C. Lungs
D.Liver
13
Copper can be converted into gold by ?
A. Kenya
B. Malaysia
C. Malta
D. Pakistan
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0
The three elements needed for healthy growth of plants are __________?
A. Artificial radioactivity
B. heating
C. Electroplating
D. Chemical reaction
5
Clocks, which moves with the velocities comparable with the velocity of light, run ?
A. N, P, K
B. N, C, P
C. N, K,
D. N, S, P
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