Question 1
- Define the term Environment.
- Highlight two types of environment
- Briefly explain the relationship between Geography and chemistry
Answer
- The term environment refers to all external conditions surrounding an organism and which has influence over its behavior
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1. Physical environment which includes physical conditions of weather , climate e.tc
2. Human environment which includes human activities such as farming, tourism e.t.c -
- Chemistry includes the study of substances, their composition and behaviour.
- Geography applies chemistry in studying the chemical composition of rocks and soils.
Question 2
- State two effects of the revolution of the earth.
- What is the longitudinal of a place X whose local time is 8.00an, when the local time at Greenwich meridian (0o) at noon?
Answer
-
- Causes the four seasons, winter, autumn, spring and summer.
- Causes varying length of day and night. -
(i) Differences in time
12. 00 – 8.00 = 4hrs
(ii) The earth rotate through 150 every one hour. in 4 hrs rotation is through
15 x 4 = 600
(iii) The time at x is behind that at green wich meridian , so x must be to the west of green wich by 600.
X is therefore 60 0 w
Question 3
- Define the term mineral
- Distinguish between porous and pervious rocks
- List two factors that influence the development of a soil profile
Answer
- A mineral is inorganic substance which occurs naturally at or beneath the surface of the earth.
- Porous are spongy like rocks with pores and have a high capacity to hold water while pervious rocks are solid rocks which have cracks with a high rate of water passage.
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- Rate of evaporation
- Human activities
Question 4
The diagram below illustrates river capture
- Name the features marked 1, 2 and 3.
- State two causes of river rejuvenation
Answer
-
1 – Elbow of capture
2 – Wind gap / Dry valley
3 – misfit river / Beheaded stream -
- Rate of evaporation
- Human activities
Question 5
The diagram below shows the movement of the glacier
- Identify the moraines marked X, Y, and Z
- State two factors that influence the movement of glacier
Answer
-
X – Terminal morain
Y – Lateral morain
Z – Middle / medial morain -
- Gradient of the slope
- The thickness and weight of ice