Answer: A. True.
Explanation: A substance or material is hazardous if can be dangerous to a susceptible agent. This susceptible agent can be a human being, an animal, a plant, a fungi or any other living form, or an environment agents like water, soils, air etc. that can be contaminated with it and later could be dangerous for a living forms.
Answer: It must be based on scientific observations that can be repeated in a controlled setting.
Explanation:
A scientific claim is the claim which includes statement(s) which is verified by the observations obtain after multiple experimental trials or procedures in a controlled experiment. A scientific claim can only be considered as wrong when a valid argument or prove satisfies the fact why it is wrong.
<span>Fast and accurate DNA replication is extremely vital since this method builds an exact duplicate of DNA that needs to move into one of the two daughter cells during the time when a cell splits. If replication doesn't take place, each cell cannot have sufficient genetic fabric that sends the signal for producing essential proteins for specialized body functions.</span>
<u>Answer</u>: linear diameter
<em>The linear diameter of moon is 3754 km.
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<u>Explanation:</u>
<em>Moon is the only satellite of earth. It doesn’t produce light on its own but reflects the light of sun and appears lighted up. </em>The diameter of moon can be found out using parallax method.
In parallax method moon is observed through a telescope from a point on earth the angle θ between the <em>diameter of the moon</em> and this point on earth is measured. This angle is mathematically equal to the ratio of diameter D of moon and the <em>shortest distance S between moon and earth.</em>
<em>Thus diameter of moon can be calculated by finding the product of the distance between moon and earth and the angle.
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