There are three types of fossil fuels: Oil, coal and gas.
Let's look into their formation one by one:
Oil: Dead plankton such as microorganisms and plants was buried under the sea million years ago, it accumulate over time to become oil, also known as petroleum,
Coal: Plants were dead and broken down by bacteria over time, carbon dioxide and methane were produced. After million years, the dead flora accumulated to become peat and undergone compaction, becoming coal.
Gas: This is formed along oil, and again produced by dead organisms. It is mostly formed during decomposition, and mostly made up of methane.
Hope it helps!
Answer:
Correct answer is b- Permanent population
.
Explanation:
Option A is not correct as every state needs to have a defined territory, which is established in a certain period.
B is correct as population of country changes due to different reasons, including for example the migrations.
C is not correct as every country has its leadership. For example, if it is a monarchy, it has a unique monarch (king).
D is also correct as every country has its official language.
The answer is B. Mountains.
Answer:
4
Explanation:
showing less births, and it sounds by 2055 theyll be in stage 5, however for the time being they are in stage 4 (i had an image link but brainly said nah)