Which of the following is an effect of the earth's revolution?
Day and night
It determines a year
Dawn and Twilight
Apparent Sunrise and sunset
Correct answer is B
The time taken by the earth to move round the sun(i.e complete its orbit) is fixed at 365(1/4) days which makes up a year
Weathering
Denudation
Relief
Mass wasting
Correct answer is B
Dendation involves breaking of the earth's surface hence levelling such surface through agents such as water, wind etc.
Error of compass
Traverse error
Error of closure
Field error
Correct answer is C
Error of closure is the failure of the end point of a closed traverse to fall exactly on the point of origin of the transverse. This error can only be known when the field details are plotted
Optical square
Station pegs
Offset staff
Steel Band
Correct answer is A
Using either the mirror method or the prism square method, the optical square is used to mark out lines at right angles to the main chain line.
One of the following is not a problem involved in harnessing solar energy?
Poor technological know-how
Adequacy of capital
Unreliability
Fear of competition with established energy sources
Correct answer is B
High cost of harnessing solar energy is a problem while adequacy of capital isn't