Answer:
OSHA 's Hazard Communication Standard . Standard Number: 1910.1200 OSHA requirements are set by statute, standards and regulations.
Explanation:
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B. Carbon dioxide is carried through the blood vessels back to the lungs.
Answer:vector
Explanation: A vector is a living thing that transfer the Infection or diseases to another living thing,through sting or bite. The mosquito play the role of a vector caring the disease or infection to Jane.
2020 will officially be over january 1 2021