Activity 1.2 Decide whether the given information is true or false. Write T
for true or F if otherwise.
1. Water is a very essential compound, it makes up 70% of the total mass
of the human body.
2. Carbon is present in carbohydrates, fats and proteins.
3. Calcium is not needed for strong bones and teeth.
4. Salt and sugar are commonly used food flavorings.
5. Oxygen is absorbed by plants for photosynthesis.
6. Nitrogen makes 78% of the air.
7. Chlorine is used in water treatment.
8. Calcium oxide is used in the manufacture of glass and cement.
9. Banana is rich in potassium.
10. Carbon dioxide is released by plants.​