Name the four types of coal. Which of these is the best for industrial purposes? justify your answer.
Types:
i. Anthracite ii. Bituminous iii. Lignite iv. Peat
Anthracite is the best quality of coal as it has high percentage of carbon and has the highest heating value.
Give reasons for the following:
i. It is cooler on the mountain slopes than in the plains during summer.
ii. Mumbai is warmer than Kanpur in December.
iii. Rajasthan receives very little rainfall.
Study the table given below and answer the questions that follow:
|
Station |
Months |
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
|
A |
Temperature |
14.4 |
16.7 |
23.3 |
30.3 |
33.3 |
33.3 |
30.0 |
29.4 |
28.9 |
25.6 |
19.4 |
15.6 |
|
Rainfall |
2.5 |
1.5 |
1.3 |
1.0 |
1.8 |
7.4 |
19.3 |
17.8 |
11.9 |
1.3 |
0.2 |
1.0 |
|
|
B |
Temperature |
24.4 |
24.4 |
26.7 |
28.3 |
33.0 |
28.9 |
27.2 |
27.2 |
27.2 |
27.8 |
27.2 |
25.0 |
|
Rainfall |
0.2 |
0.2 |
0.3 |
1.0 |
1.8 |
50.6 |
61.0 |
24.8 |
24.8 |
24.8 |
1.0 |
0.7 |
i. Calculate the annual rainfall in station A.
ii. What is the annual range of temperature in station B?
ii.What of the two stations has an equable climate?
