Th earth's crust consists essentially of?
...Th earth's crust consists essentially of?
magnesium and silica
silica and aluminium
calcium and aluminium
magensium and calcium
Correct answer is B
No explanation has been provided for this answer.
All the following are benefits of irrigation farming except ...
The total land area of Nuriki District is ...
The Gezira plain is an important agricultural region in Africa noted for the production of ...
An example of a landform produced by glaciation is ...
A broad-based population pyramid is composed mainly ...
Which of the following are characteristics of most large cities? They I. have large populations ...
A major hindrance to foreign investment in Tropical African countries is ...
Nigeria's major export commodity is ...
The major problem facing the railway transport compared to road transport is ...