Answer:
Burning of plastic in the open air, leads to environmental pollution due to the release of poisonous chemicals. The polluted air when inhaled by humans and animals affect their health and can cause respiratory problems.
Its not showing the underlined part so I cant help sorry
The answer D. Trustworthy because a credible source cannot be biased, useless or persuasive if doing research foe an essay.
Basically the soldiers waiting for the enemies to push them and start attacking with the Bayonets
