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CHEMISTRY

Chemistry
The source of energy that causes the least global warming is

Natural Gas
Petroleum
Coal
Geothermal energy

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Chemistry
Which of the following fuels causes minimum environmental pollution?

Kerosene
Coal
Hydrogen
Diesel

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Chemistry
Biofertilizers convert nitrogen to ________ .

Nitrates
Ammonia
Nitrogenase
Amino acids

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Chemistry
The elements in the modern Periodic table are arranged according to their

Atomic Weight
Atomic number
Neutron number
Mass number

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Chemistry
Periodic table contains how many periods

10
6
8
7

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