Coal is plentiful and inexpensive; therefore many countries use it despite its environmental impacts. true false

True.

Explanation:

Coal is a sedimentary hard rock that is formed from peat which is burned as fossil fuel to supply energy.

It is the most abundant natural resources found everywhere in the world and it is in expensive because of it's abundance.

It is use for producing steel, to generate electricity, manufacture cement and use as liquid fuel.

It has various environmental impact. Coal mining,processing of coal and using it has lead to water and air pollution which has cause different ailment like asthma and cancer in humans.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: