Consider the following statements:\n\n1. Other than those made by humans, nanoparticles do not exist in nature.\n2. Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.\n3. Nanoparticles of some commercial products which enter the environment are unsafe for humans.\n\nWhich of the statements given above is/are correct?
Question:
Consider the following statements:\n\n1. Other than those made by humans, nanoparticles do not exist in nature.\n2. Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.\n3. Nanoparticles of some commercial products which enter the environment are unsafe for humans.\n\nWhich of the statements given above is/are correct?
Consider the following statements:\n\n1. Other than those made by humans, nanoparticles do not exist in nature.\n2. Nanoparticles of some metallic oxides are used in the manufacture of some cosmetics.\n3. Nanoparticles of some commercial products which enter the environment are unsafe for humans.\n\nWhich of the statements given above is/are correct?
Options
Answer: 2 and 3
Explanation:
Natural nanoparticles exist in volcanic ash, smoke, and sea spray. Metallic oxide nanoparticles like titanium dioxide are used in cosmetics, and some may pose health or environmental risks.
Explanation:
Natural nanoparticles exist in volcanic ash, smoke, and sea spray. Metallic oxide nanoparticles like titanium dioxide are used in cosmetics, and some may pose health or environmental risks.
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