When conducting tests for the presence of a specific organic substance, it is very useful to include an Experiment control.
<h3>What are chemical changes?</h3>
A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions. Chemical reactions are usually characterized by a change in colour, heat change, precipitate formation and evolution of bubbles.
Example: Oxidation of magnesium
Thus, this could be the answer.
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Educating a woman and by making them aware about the health care can lower the rate of infertility.
Explanation:
The status and role of women are closely associated with the fertility rate throughout the world. The need of universal education and equality for women would be helpful in lowering the rate of infertility. There is a typical tradition about thinking a woman as mere bearer of child and household worker.
This led to the less care of girls from an early age at several under developed or less developed countries, making them away from education and early marriage. This further led to the unplanned family and infertility. However, educating women can make them aware about themselves and their health to bear less child and less chances of infertility among them.
Answer:
A
Explanation:
I just learned about it myself.
Answer: The answer is B
Explanation:
A is not practically possible as mars is such a great distance away
C water of course wasnt around in earth at the time but other planets did have water so this isnt an accurate answer
D cracks me up, Hydrogen was the first element in space after the Big Bang this is also an in accurate answer
Explanation:
Viral protein 1 (VP1) is a surface-exposed pentameric protein that makes up the viral icosahedral capsid through the interconnectivity of 72 VP1 pentamers and is the viral attachment protein for all known polyomaviruses,.
