The best answer is (1)
Fossil fuels are commercially available as an energy source.
They are very easy to find. More and more extractions of fossil fuels is going on everyday. With advancement in science and technology, the refineries and extraction procedures have improved a lot. This makes their availability even better.
Fossil fuels are also easily combustible. Most combustion engines need to be powered with little amount of fuel to produce large amount of energy. Very large amounts of electricity can be generated from fossil fuels.
D after exposure all the reproduction cells have mutated to become resistant for the next gen
Answer: uncharged particle found in atomic nuclei
Explanation: A neutron is one of the three components of an atomic nucleus. A neutron has no charge that is, it is unchanged. An atom has three components: electrons, protons and neutrons. The neutrons and protons are located inside the nucleus of an atom while electrons are found outside the nucleus where they revolve round the nucleus. The number of neutrons and protons in a nucleus of an atom makes up the mass number of an element.
Second level consumers eat "Producers" in the food chain. like Green Plants etc
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