Question

What would happen to types of rainfall if the earth's surface becomes all plain?

• A. No cyclonic rainfall
• B. No orographic rainfall
• C. No convectional rainfall
• D. No frontal rainfall

Answer 1

The correct option is B No orographic rainfall

When mountain of uplands act as barriers as airflow, forcing the air to ascend, moist air moving upslope cools adiabatically, producing clouds and precipitation. Most of this precipitation falls upwind in the mountain ridge. On the lee side of the mountain range rainfall is usually low. This area is called rain-shadow area. Example Mahabaleshwar situated on the western ghats receives more than 600 cm of rainfall, whereas Pune lying in rain-shadow area receives only 70 cm. If the Earth surface become all plain there will be no orographic rainfall.

The correct answer is option B.