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Question 1 Report
(a) Define atmospheric condition.
(b) List four major sources of air pollutants.
(c) Highlight four effects of atmospheric pollution.
(a) Definition of atmospheric condition
Atmospheric condition refers to the physical state of the atmosphere of a place at a given time, described by the weather elements such as temperature, rainfall, humidity, wind, pressure, cloud cover and the degree of purity or pollution of the air.
(b) Four major sources of air pollutants
(Others: refuse/waste incineration, power stations, volcanic eruptions and dust.)
(c) Four effects of atmospheric pollution
(Also: reduced visibility/smog, poor plant growth and lower agricultural yields.)
Answer Details
(a) Definition of atmospheric condition
Atmospheric condition refers to the physical state of the atmosphere of a place at a given time, described by the weather elements such as temperature, rainfall, humidity, wind, pressure, cloud cover and the degree of purity or pollution of the air.
(b) Four major sources of air pollutants
(Others: refuse/waste incineration, power stations, volcanic eruptions and dust.)
(c) Four effects of atmospheric pollution
(Also: reduced visibility/smog, poor plant growth and lower agricultural yields.)
Question 2 Report
(a) State two differences between weather and climate.
(b) Name the instruments used in measuring the following weather elements: (i) sunshine (ii) rainfall (iii) cloud cover.
(c) Explain how Wind speed is measured and recorded.
(a) Two differences between weather and climate
| Weather | Climate |
|---|---|
| The state of the atmosphere of a place over a short period (a day or a few days). | The average weather conditions of a place taken over a long period, usually at least 30 to 35 years. |
| It changes frequently from hour to hour or day to day. | It is relatively stable and changes only over a long time. |
(b) Instruments used to measure the weather elements
(c) How wind speed is measured and recorded
Answer Details
(a) Two differences between weather and climate
| Weather | Climate |
|---|---|
| The state of the atmosphere of a place over a short period (a day or a few days). | The average weather conditions of a place taken over a long period, usually at least 30 to 35 years. |
| It changes frequently from hour to hour or day to day. | It is relatively stable and changes only over a long time. |
(b) Instruments used to measure the weather elements
(c) How wind speed is measured and recorded
Question 3 Report
(a) List five factors that affect climate.
(b) Highlight five characteristics of Equatorial climate.
(a) Five factors that affect climate
(Vegetation cover and cloud cover are also acceptable.)
(b) Five characteristics of the Equatorial climate
Answer Details
(a) Five factors that affect climate
(Vegetation cover and cloud cover are also acceptable.)
(b) Five characteristics of the Equatorial climate
Question 4 Report
(a) Define climate.
(b) Draw the globe and show the three climatic belts of the Greek System of Classification.
(c) List three areas of hot deserts
(d) Outline three characteristics of hot deserts.
(a) Definition of climate
Climate is the average condition of the atmosphere of a place, determined from observations of weather elements over a long period, usually about 30 to 40 years.
(b) Climatic belts of the Greek system of classification
The Greeks classified the world into three main climatic belts: the Frigid, Temperate and Torrid belts. The Frigid and Temperate belts each occur in both hemispheres.
(c) Three areas of hot deserts
(d) Characteristics of hot deserts
Answer Details
(a) Definition of climate
Climate is the average condition of the atmosphere of a place, determined from observations of weather elements over a long period, usually about 30 to 40 years.
(b) Climatic belts of the Greek system of classification
The Greeks classified the world into three main climatic belts: the Frigid, Temperate and Torrid belts. The Frigid and Temperate belts each occur in both hemispheres.
(c) Three areas of hot deserts
(d) Characteristics of hot deserts
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