YDS YARIM CÜMLE / TEST 1 10. Soru

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100 %

10.

- ----, natural gas is used extensively as an
illuminant and a fuel.

Although it gives off a great deal of energy
when burned

As it reacts with water vapour and is
eventually returned to the Earth as acid
rain

Because it can cause a fire if there is a
source of ignition

Whether natural gas was first discovered
because of flames shooting up from the
Earth's surface

Due to its flammability and high calorific
value