AGROMETEOROLOGY AND BIOGEOGRAPHY (CPAP3101)
Crop Production Technology - CPT
Semester: First Semester
Level: 300
Year: 2014
Part I – Biogeography
1. a) With the aid of a clear example, discuss how evolutionary relicts affected the distribution
of organisms.
b) How can you account for the fact that dispersion and colonization are the key factors that
influence the distribution of fauna?
Part II – Climatology
Circle the letter(s) that correspond(s) to the correct answer(s).
1. Relative humidity is: a) always higher at 30°C than at 20°C; b) always higher at 20°C than at
30°C; c) the ratio of water vapour content at a given temperature to what the air can hold at
that temperature; d) equivalent to potential evapotranspiration; e) none of the above.
2. The instrument used to measure humidity is called a: a) hydrometer; b) thermograph; c)
hygrometer; d) barometer; e) all of the above.
3. If a wind is blowing is blowing from the south to the north, a low pressure centre is most
likely located to the: a) south; b) southeast; c) north; d) northeast; e) west.
4. Wet objects out in the sun dry because of: a) precipitation; b) evaporation; c) condensation;
d) vapour pressure; e) relationship.
5. A cloud that forms close to the ground is called: a) cirrus; b) cumulus; c) fog; d) dew; e)
stratus.
6. Mountain breeze blows: a) during the day; b) from the valley up the slope; c) during the
night; d) when the mountainside is warm; e) from the mountain down the slope.
7. The weather associated with a very rapidly falling barometer is probably: a) fair; b) cold; c)
stormy and rainy; d) bright and sunny; e) all of the above.
8. The force that moves air from high pressure to low pressure is known as: a) coriollis force;
b) friction force; c) pressure gradient force; d) gravity force; e) tension force.
9. The most abundant gas in the earth’s atmosphere is: a) oxygen; b) carbon dioxide; c)
nitrogen; d) ozone; e) nitrogen oxide.
10. Net radiation is: a) radiation that is left over a solar flare; b) the difference between the
absorbed radiation and the emitted radiation; c) solar energy that exceeds the solar
constant; d) the sole cause of global warming; e) not influenced by cloud cover.
11. Sweating cools people because: a) it releases latent heat; b) it changes the heat capacity of
the body; c) colder molecules in passing wind adhere to the wet skin; d) it involves a transfer
of sensible heat; e) water is colder than the exposed skin.
12. Insolation reaching the earth: a) is all absorbed by the earth; b) represents about 50% of the
amount that was at the top of the atmosphere; c) is unaffected by the earth’s albedo; d) is
not affected by the backscattering ; e) is mainly infrared radiation.
The University
Of Bamenda
College Of Technology – COLTECH
Department: Crop Production Technology First Semester Examination
Date: 28-04-2014 Time Allowed: 3 Hours
Course Code: CPTP2301 Instructors: Angwafor, Tankou
Course Title: Climatology and Biogeography
Instructions:
Answer all questions and do not mix
-
up sections
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13. The heterophere: a) lies below the homosphere; b) contains primarily heavy gases; c) made
up primarily by variable gases; d) is named for its chemical homogeneity.
14. The standard atmospheric pressure at an altitude of 1800m is approximately: a) 81.8 Pa; b)
81,800 Pa; c) 81.8 mb; d) 81.8 cm of mercury; e) all of the above.
15. Which of the layers of the atmosphere is characterized by having a temperature inversion:
a) thermosphere; b) mesosphere; c) stratosphere; d) troposphere; e) both a and c; f) both b
and d.
16. Fusion is the process of the a substance: a) from the liquid to the solid state; b) from the
solid state to the vapour state; c) from the solid state to the liquid state; d) from the liquid
state to the gaseous state; e) from the gaseous state to the solid state.
17. Absolute humidity is: a) the mass of water vapour per unit mass of moist air; b) expressed in
grams per cubic metre; c) is maximum water vapour content of dry air; d) is very stable with
altitude; e) is measured with Piche evaporimeter.
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