Chemistry, 19.09.2019 09:50 adrianmelchor146
Both petroleum and coal are made up of complex carbon-based molecules, and both originated with living creatures of some kind. both are vital sources of energy for the modern world and both were formed by geologic processes over millions of years. however, petroleum was mainly formed from the remains of ocean-dwelling microorganisms. coal, on the other hand, originated from decayed vegetation in ancient swamps and bogs. in any case, it took millions of years for both coal and oil to be produced. this is the case because it took that much time for overlying sediments to produce the unimaginable heat and pressure that would one day allow us to harvest these energy resources.
4. what is one clue word or phrase in the passage that indicates a contrast?
a. however
b. in any case
c. both
d. because
Answers: 1
Chemistry, 22.06.2019 04:00
How do scientists think that gravity affected the formation of our solar system?
Answers: 1
Chemistry, 22.06.2019 14:00
Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
Answers: 2
Both petroleum and coal are made up of complex carbon-based molecules, and both originated with livi...
English, 04.10.2019 21:40
Mathematics, 04.10.2019 21:40
Mathematics, 04.10.2019 21:40
Health, 04.10.2019 21:40
Computers and Technology, 04.10.2019 21:40
Biology, 04.10.2019 21:40
Mathematics, 04.10.2019 21:40
Health, 04.10.2019 21:40