Daily Current Affairs (MCQ's) | 16-11-2022

Q1. Which of the following rivers is not located in South America?

1. Parana
2. Amazon
3. Paraguay
4. Orange

Answer (d)

Explanation:

Q2. Pampas, llanos and Patagonia are physical features of the

1. South America
2. North America
3. Europe
4. Central Asia

Answer (a)

Explanation:

Q3. Which of the following countries does not share a border with Brazil?

1. Ecuador
2. Venezuela
3. Peru
4. Argentina

Answer (a)

Explanation:

Q4. Which of the following are hot ocean currents?

1. Gulf stream
2. Peru current
3. Brazil current

Select the correct answer from codes given below

1. 1 2, and 3
2. 1 and 3 only
3. 3 only
4. 2 and 3 only

Answer (b)

Explanation:

Q5. Consider the following statements

1. Upwelling is a process in which deep, cold water rises toward the surface
2. Water that rises to the surface as a result of upwelling is typically colder and is rich in nutrients
3. Good fishing grounds typically are found where upwelling is common

Which of the above statements is/are correct?

1. 1 and 3 only
2. 1 only
3. 2 and 3 only
4. 1, 2 and 3

Answer (d)

Explanation:

Upwelling is a process in which deep, cold water rises toward the surface.

This graphic shows how displaced surface waters are replaced by cold, nutrient-rich water that “wells up” from below. Conditions are optimal for upwelling along the coast when winds blow along the shore.

Winds blowing across the ocean surface push water away. Water then rises up from beneath the surface to replace the water that was pushed away. This process is known as “upwelling.”

Upwelling occurs in the open ocean and along coastlines. The reverse process, called “downwelling,” also occurs when wind causes surface water to build up along a coastline and the surface water eventually sinks toward the bottom.

Water that rises to the surface as a result of upwelling is typically colder and is rich in nutrients. These nutrients “fertilize” surface waters, meaning that these surface waters often have high biological productivity. Therefore, good fishing grounds typically are found where upwelling is common.