Answer:
a space entirely devoid of matter
Answer:
B is the correct answer.
Explanation:
Law of conservation of mass states that the mass of an object never changes with time. This means that during a chemical reaction mass of reactants always remains the same even after the formation of products.
We can conclude that the law of conservation of matter states that during a chemical reaction, the amount of matter does not change
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Answer:
d. A purine base forms hydrogen bonds to pair with a pyrimidine base located on the opposite DNA strand. Specifically, A pairs with T, and C pairs with G.
Explanation:
Non - biodegradable and lipid soluble are the properties of toxic-ant that are likely to build up in animals through bio-accumulation.
In this chemical such as PCSs, DDT , dioxins, and mercury are all persistent chemicals. Because they don't break down and go away , these chemicals are problems . Toxicants that travels through the environment mainly by means of air and water .
Bio-accumulation is the toxic-ant which buildup the tissues of an animals. Bio-magnification is when toxins moves higher concentrations as they move to higher tropic levels. Toxicity is associated with the bio-accumulation and bio-magnification and storage of metals faster than the rate at which an organism metabolizes and excretes lead to the accumulation of that metal.
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