| 1 |
Which process is responsible for ascending of water in plants from roots to leaf? |
Condensatin
Transpiration
Capillary action
Evaporation
|
| 2 |
Which one of the following properties of water is responsible for rising of water in plants? |
Specific heat capacity
Viscosity
Excellent solvent action
Capillary action
|
| 3 |
Boiling point of water is: |
0<sup>o</sup>C
25<sup>o</sup>C
80<sup>o</sup>C
100<sup>o</sup>C
|
| 4 |
At which temperature o water shows mxamimum density. |
0 <sup>o</sup>C
100<sup>o</sup>C
4<sup>o</sup>C
-4<sup>o</sup>C
|
| 5 |
The density of water is ................. at 4 oC |
1 gcm<sup>-1</sup>
2 gcm<sup>-1</sup>
3 gcm<sup>-1</sup>
4 gcm<sup>-1</sup>
|
| 6 |
The heat capacity of water is greater than rocks. |
4 times
5 times
6 times
7 times
|
| 7 |
Specific Heat capacity of water is about. |
4.0 Jg<sup>-1</sup> K<sup>-1</sup>
4.1 Jg<sup>-1</sup>K<sup>-1</sup>
4.2 Jg<sup>-1</sup>K<sup>-1</sup>
4.3 Jg<sup>-1</sup>K<sup>-1</sup>
|
| 8 |
How many percentage to water contains oceans? |
67%
77%
87%
97%
|
| 9 |
The % age of drinkable water on earth is |
2.0%
0.02%
0.2%
5.0%
|
| 10 |
Which gas saves the surface of earth from ultra violet radiation? |
CO<sub>2</sub>
CO
N<sub>2</sub>
O<sub>3</sub>
|
| 11 |
The formula of ozone is. |
O<sub>2</sub>
O<sub>3</sub>
O
CO
|
| 12 |
Which one of the following is not air pollutant. |
CO<sub>2</sub>
CO
NO<sub>2</sub>
O<sub>2</sub>
|
.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
