| 1 |
Sea water in unfit for drinking purpose die to the presence of. |
- A. Salts
- B. Algae
- C. Fishes
- D. All of them
|
| 2 |
Which process is responsible for ascending of water in roots: |
- A. evaporation
- B. transpiration
- C. condensation
- D. capillary action
|
| 3 |
Clark's method is used to remove the hardness of water, in this method which is used. |
- A. Ca(HCO<sub>3</sub>)<sub>2</sub>
- B. Na-Zeolite
- C. Ca-Zeolite
- D. Ca(OH)<sub>2</sub>
|
| 4 |
The percentage of potable water on earth is. |
- A. 2%
- B. 0.2%
- C. 0.02%
- D. 0.002%
|
| 5 |
Vibrious cholera causes. |
- A. Choleera
- B. Dysentery
- C. Fluorsis
- D. Hepatitis
|
| 6 |
Specific heat capacity of water is. |
- A. 4.2 KJg<sup>-1</sup> K<sup>-1</sup>
- B. 4.2 Jg<sup>-1</sup>K<sup>-1</sup>
- C. 2.4 KJg<sup>-1</sup>K<sup>-1</sup>
- D. 2.4 Jg<sup>-1</sup>K<sup>-1</sup>
|
| 7 |
Which disease cause liver inflammation? |
- A. Typhoid
- B. Jaundice
- C. cholera
- D. Hepatitis
|
| 8 |
the removal of which ion causes water softening. |
- A. Na<sup>+</sup>
- B. Mg<sup>2</sup>
- C. Li<sup>+</sup>
- D. K<sup>+</sup>
|
| 9 |
Chemical formula of hypochlorous acid is. |
- A. HCl
- B. HOCl
- C. H<sub>2</sub>CO<sub>3</sub>
- D. HF
|
| 10 |
Hook warm larvae enter the body through. |
- A. Food
- B. Water
- C. Skin
- D. All of them
|