Question

Fill in the blanks.
1. All living beings need_____to stay alive.
2. About__________of the earth's surface is covered with water.
3. Water is colourless, odourless and__________liquid.
4. The solid substance that dissolves in a solvent is called________
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Answer 1

Answer:

1. oxygen

2. 3/4

3. Water is a colorless and odorless substance found all over Earth. Water is made up of billions of molecules. Each molecule is made of one oxygen and two hydrogen atoms held together by strong covalent bonds. Water is found in three different forms on Earth – gas, solid, and liquid

Answer 2

Answer:

1) food, water

2) 70%

3) tasteless

4) solute

Hope it helps...