(1a)To draw the map to a new scale from
1:50,000 to 1:25,000 means to enlarge
the map to twice its original size i.e old scale/new scale =50,000/25000=2
(3a) Latitudes are angular distances drawn along
the earth surface dividing the earth north and south of the equator.
They include the equator, tropics of cancer and Capricorn,
the arctic and antarctic circles and the north and south pole.
(3b). (i) they are both measured in angles.
(ii)they both combine to determine
the exact position of places on the earth
(iii)they both contain great circles.
(3cii)the lines of latitudes are called parallel
while that of longitudes are called meridians.
(3ciii)the lines of latitudes are used for
calculating distance while that of longitudes
are used for calculating local time.
(3civ)the lines of latitudes run from west to east while
that of longitudes run from north to south.
(3cv)the lines of latitude measure up to 180
degree while that of longitude measure up to 360 degree.
(4)a climate is the average weather condition of
a place over a period of time usually
measured over a period of about 35years.
(4c) the temperature of a place decreases
by 6.5degree c through every 1000m ascent
i.e. Sea level =40 degree c
6000m = 40 degree c – (6.5degree c*6)
Chemically formed sedimentary rocks are
precipitation from rock solutions.
(5b) sodium chloride, dolomite and gypsum.
(5c) they are mainly important as salts which includes
table salts which is a mineral component of food
for man and also chemical salts used in laboratory.
