| 1 |
The weight of an object in Earth's gravitaional field depends on. |
- A. Mass of the object
- B. Acceleration due to gravity
- C. Both a and b
- D. None of these
|
| 2 |
------------- in mouth has antiseptic property and kills microogansms in food. |
- A. Tongue
- B. Teeth
- C. Saliva
- D. Trachea
|
| 3 |
Products of anaerobc respiration in yeasts are .......... along with energy. |
- A. Carbon dioxide and water
- B. Ethanol and carbon dioxide
- C. Oxygen and water
- D. Lactic acid and water
|
| 4 |
Which of teh following is cation. |
- A. H2
- B. H2O
- C. CO2
- D. NH+4
|
| 5 |
Compustion is a. |
- A. Physical Change
- B. Chemical change
- C. Thermal change
- D. None of these
|
| 6 |
Trachea divides into two |
- A. Bronchi
- B. Veins
- C. Villi
- D. Ribs
|
| 7 |
Oxygen is a |
- A. Monoalent element
- B. Divalent element
- C. Trivalent element
- D. Tertravalent element
|
| 8 |
SI unit of time is. |
- A. S
- B. min
- C. hr
- D. all above
|
| 9 |
An element with fifteen protons in its atomic nucleus has atomic numebr. |
|
| 10 |
The temerature o boiling water in centigrade scale is. |
- A. 0 oC
- B. 32 oC
- C. 37 oC
- D. 100 oC
|