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a natural substance is something that is found again and again in many different forms eg. salt (also a reoccurring substance)
There are many types of sugar but, if you are describing one type of sugar and not a mixture of many sugars it would be a pure substance.
phytochemical
Of course, using a magnet (electromagnet). This is valid for many mixtures.
5a+10b = 10ab
Children are capable of drinking many a substance.
"Substance" can be anything made of matter. Many substances are food, but not all of them. Not every substance we can "consume" is food, either; for example, we can consume or drink medications, but those are not foods. You might, however be thinking of the word "sustenance", which means "food and drink".
Many-coloured Fruit Dove was created in 1848.
17
2
4
28
That depends on what colour the hole is!
The coloured material may lose its colour, because many dyes and pigments are bleached by an aqueous chlorine solution.
They show ascending levels of proficiency.
2: Red and White
12 colours everyone