Formation of a sedimentary basin

Question 1

? is most often found in a sedimentary basin

Answer 1

Petroleum

Question 2

A sedimentary basin is a ?
area of the Earth’s crust where tiny ? and ? lived or were
deposited with mud and silt from the ? and ?

Answer 2

depressed

plants and animals

streams and rivers.

Question 3

These sediments eventually

hardened to form ? rock.

Answer 3

sedimentary

Question 4

The soft parts of plants and animals,

exposed to heat and pressure over millions of years, gradually changed to

Answer 4

oil

and natural gas.

Question 5

Temperature, pressure and compaction of sediments increase

at greater ?.

Answer 5

depths