Question

sources of hazardous wastes
5 how can organic compounds harm humans and animals?
6 what are heavy metals, and how do they get into the environment?

Explanation:

Organic compounds can cause toxicity via ingestion, inhalation etc. Heavy - metals are dense metals. They enter environment through industrial activities, mining etc.

Answer:

1. Organic compounds can cause toxicity through ingestion, inhalation, or skin contact.
2. Heavy - metals are dense metals. They enter the environment via industrial processes, mining, and waste disposal.