Answer: thermosphere is the layer of the earth's atmosphere directly above the mesosphere and directly below the exosphere while mesosphere is layer of the earth's atmosphere that is directly above the stratosphere and directly below the thermosphere.
Answer:
Option d) Gulf stream
Explanation:
The Gulf stream along with the drift in North Atlantic which is the northern extension of the Gulf stream is a warm current of Atlantic ocean.
It has its origin in the Gulf of Mexico and extends upto the tip of Florida along the coastlines of the eastern part of the NewfoundLand and the U.S before passing through the Atlantic Ocean.
These are responsible for the milder winter climates of Northern Europe and the U.S
<em>Answer:</em>
<em>As the Industrial Revolution was a shift from the agrarian society, people migrated from villages in search of jobs to places where factories were established. This shifting of rural people led to urbanization and increase in the population of towns. The concentration of labour in factories has increased urbanization and the size of settlements, to serve and house the factory workers.</em>
The Sahel is located in Africa. It is the region in Africa that transitions from the Sahara to the Sudanian Savanna. It stretches across in the region from the West of Africa to the East and includes parts of Senegal, Mauritania, Mali, Burkina Faso, Algeria, Niger, Nigeria, Chad, Sudan, South Sudan, Eritrea, CAR, Cameroon, and Ethiopia.
