Tag: study of continents - north america

Questions Related to study of continents - north america

Where is the source of river Mississippi?

  1. Lake Ontario

  2. Great Slave Lake

  3. Lake Itasca

  4. Lake Victoria


Correct Option: C
Explanation:

The Mississippi River is the second-longest river and chief river of the second-largest drainage system on the North American continent. It's  source is Lake Itasca in northern Minnesota and it flows generally south for 2,320 miles to the Mississippi River Delta in the Gulf of Mexico.

The Amazon river originates in _____________.

  1. Swiss Alps

  2. Tibetan Plateau

  3. Andes mountains

  4. Black forest mountain


Correct Option: C
Explanation:

The Amazon River is the largest river in the world by the amount or volume of water it carries. Its headwaters are in the Andes Mountains in Peru. It flows through the tropical forests of South America.

Consider the following.
$1$. Chilika Lake
$2$. Pulicat Lake
$3$. Vembanad Lake
Which of the given is/are lagoon(s)?

  1. $1$ and $2$

  2. $2$ only

  3. $1$ and $3$

  4. $1, 2$ and $3$


Correct Option: D

Which one of the following east flowing rivers of India has rift valley due to down warping?

  1. Damodar

  2. Mahanadi

  3. Sone

  4. Yamuna


Correct Option: A

Pollution of water bodies results in ________________.

  1. loss of aquatic ecosystem

  2. impure quality of water

  3. scarcity of fresh water

  4. all of the above


Correct Option: D
Explanation:
Water pollution is the contamination of water by various pollutants. The effect of water pollution depends upon the kind of chemicals and other pollutants being dumped into the water. The following are the effects of water pollution:
1) The main effect of water pollution is that there is a loss of the aquatic ecosystem. The fishes that depend upon water get killed by the harmful chemicals or plastics in the water. 
2) Another effect is that the water becomes impure by water pollution. The pollutants are so much harmful that the healthy bacteria living in the water get killed by the chemicals and water becomes unfit for any purposes. 
3) With water pollution there occurs a significant scarcity of freshwater. The water becomes unfit for drinking purposes. With the increasing water pollution and increase in falls in the groundwater, there arises a serious issue of freshwater.

From where the river Ganga originates?

  1. Yamunatri Glacier

  2. Gangotri glacier

  3. Tibetan plateau

  4. Altai mountains


Correct Option: B
Explanation:

The mainstream of Ganga begins at the confluence of the Bhagirathi and Alaknanda rivers in the town of Devprayag. The Bhagirathi rises at the foot of Gangotri Glacier, at Gaumukh, at an elevation of 3,893 m.

Which of the following lakes were formed by volcanic activities?
(A) Lonar lake
(B) Bhim Tal of Kumaun
(C) Toba lake
(D) Keloed lake

  1. A and C

  2. A and D

  3. A, C and D

  4. A, B, C and D


Correct Option: C