Which of the following distinguishes rotation from revolution?
Revolution causes day and night while rotation causes season
Rotation causes variation in the lengths of day and night while revolution causes rising and falling of tides
A complete revolution takes 24 hours while rotation makes a year
The earth rotates on its axis while it revolves around the sun in an elliptical orbit
Correct answer is D
ROTATION,REVOLUTION
i. earth rotates on its axis,the earth revolves in an elliptical orbit
ii. it causes day and night and takes 24hrs,it causes season and makes a year
A slope is said to be even when the contours are
concentric
irregularly spaced
closely spaced
equally placed
Correct answer is D
Even or uniform slope is a slope in which its contour line is uniformly spaced. It means, the degree of steepness is the same throughout the slopes
The most common form of migration experienced in countries of Tropical Africa is
urban-rural migration
rural-rural migration
urban-urban migration
rural-urban migration
Correct answer is D
Countries in Tropical Africa often experienced rural-urban migration i.e the movement from rural to an urban settlement.
The dam which is not used in Gezira is the
Aswan
Jebal Azula
Jebal Azula
Sennar
Correct answer is C
Jebal Azula is a dam which is not used in Gezira scheme
The difference in time between two longitudes is approximately
15 hours
4 hours
40 minutes
4 minutes
Correct answer is D
The Earth is divided into 360 degrees of longitude, so every degree of longitude is equal to 4 minutes of time. This is because there are 24 hours in a day and 360 divided by 24 is 15. Therefore, the difference in time between two longitudes is approximately 4 minutes. The other options are incorrect.