Question

1. There are about 118 different types of
a. elements.
b. molecules.
2. Which of the following is not matter?
b. air
3. Classification is
grouping things as living and non-living.
W grouping living things on the basis of common properties.
c. grouping non-living things on the basis of common properties.
c. sound
a. water
Classification is useful because
a. it makes things look neat and tidy.
b. it makes studying the properties of things much easier.
c. it helps us in the kitchen.
d. it helps us in the school library.​

Answer 1

Answer:

1. Element

2. a

3. b

Explanation:

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