The chemical dioxin, used in the paper-making process, has been linked to an increased risk of cancer.

answer; /// i do believe the correct answer is (

b is the best answer for this question.

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: