CFCs are Chlorofluorocarbon substances used in refrigerants (subtances used to keep other things cold) and in aerosol products.
they are both relatively nontoxic(nonpoisonous) and nonflammabale - at least as compared to alternatives.
They are rather volatile - they are not very stable. Therefore it does not make sense to say that they are strong - the correct answer is then strength.
If we put a plastic bag over a branch of a tree, it should fill with the water vapor that the tree is releasing. If there is enough water vapor in the bag, it will condense into the liquid form of water, and we will be able to see it.
The homo sapiens appeared after two million years ago.Some of them spread from Africa into Asia and Europe.
Answer:
B. Deletion
Explanation:
the 3rd letter (C) is missing (deleted)
The structure of a carbohydrate(sugars) is Carbon, Hydrogen, and Oxygen.
