Question

The coastal region of Brazil receives ____________ type of rainfall.

Select one:

a. Cyclonic

b. Orographic

c. Frontal

d. Convectional

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Answer 1

Answer:

a. Cyclonic

Explanation:

The eastern most coast of brazil receives medium rainfall.

As there is moderate rainfall in the brazil of around 1000 to 1500mm. where the northeast is the driest part of the country as rainfall is highly erratic here.

The dryness of the semiarid region makes it prone to droughts.

Therefore, the right answer is option 4 medium type of rainfall is received in the eastern most coast of brazil.

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Answer 2

The coastal region of Brazil receives the orographic type of rainfall.

What is orographic rainfall?

• Orographic precipitation is defined as "snow, rain, or other precipitation, which is formed when moist air is lifted as it moves over a range of mountains".
• Orographic rainfall is caused in the following conditions:

1. Humid weather, which leads to saturation of the clouds formed.
2. An incline, such as mountainous or hilly regions.

Why does orographic rainfall occur in Brazil?

• Brazil receives rainfall from the South-East and the North East trade winds.
• The South-East winds are obstructed by the Highlands on the northern coast.
• These winds are coming from the sea, thus they are heavy with moisture.
• Hence, when they encounter the Highlands, they condense to form clouds. As these clouds are formed in the coastal region, humidity is also high.
• Thus, precipitation occurs. This type of precipitation is called orographic rainfall.

Therefore, the coastal region of Brazil receives the orographic type of rainfall.