Phagocytosis is the ingestion and destruction of particle matter by the amoeba
Answer:
RoHS applies to the following substances for electronic equipment and electrical appliances: lead, mercury, cadmium, hexavalent chromium, PBB (polybrominated biphenyls), and some PBDEs (polybrominated diphenyl ethers).
Answer:
The atmosphere is a closed system
Explanation:
Because inside the atmosphere open system
