- IELTS Preparation
- Listening
Fossil Fuels. Part 1
Listen and answer the questions.
First read the questions, then move to the track. Listen carefully and complete the sentences below.
1
Fossil
fuels
are
a
group
of
energy
sources
that
were
formed
of
.
2
During
the
Carboniferous
period,
the
land
was
covered
with
.
3
When
lifeless
organisms
and
plants
sank
to
the
bottom
of
swamps
and
oceans,
they
began
.
4
What
was
hardened
due
to
pressure
and
heat?
5
The
reason
ofthe
fossil
fuel
to
become
the
world's
dominant
energy
source
is
because
of
.
6
Fossil
fuels
are
used
both
for
transportation
purpose
and
.