April 2018 Exam

Question 1

Define Biometeorology

Answer 1

The study of the relationship between living organisms and weather

Question 2

Define atmosphere of the earth

Answer 2

The atmosphere protects the earth and is divided into layers: thermosphere, troposphere, exosphere, statussphere, mesosphere,

Question 3

Define humidity

Answer 3

Humidity is clouds that is made out of water vapor

Question 4

Which instruments do we use to measure:

a) Temperature
b) Precipitation
c) Air pressure
d) Humidity
e) Atmospheric pressure

Answer 4

a) Thermometer
b) Rain Meter/ Guage
c) Anemometer
d) hygrometer
e) Barometer

Question 5

What is the difference between evaporation and condensation

Answer 5

In condensation the water cools and falls to the ground. And in evaporation the water is heated and then turns into water vapour.

Question 6

Explain the difference between dew point and saturation

Answer 6

Dew Point: the temperature must cool before condensation happens.
Saturation: is when the air is filled with water vapor

Question 7

How does frost occur

Answer 7

Frost occur when water vapour turns directly into ice crystals on objects near to the ground

Question 8

How can frost damage many kinds of plants

Answer 8

The fluid inside plant cells expands as they freeze, This can cause the cell walls to break.

Question 9

Name the process where a liquid changes into a gas

Answer 9

evaporation

Question 10

Why does the Sahara Desert have very little evaporation

Answer 10

Because there is very little water

Question 11

What is altitude

Answer 11

It tells us how high we are from sea level

Question 12

Explain the term contour intervals

Answer 12

Horizontal distance between two contours; Close together is a steep slope and Far apart is a gradual slope

Question 13

Explain the difference between weather and climate

Answer 13

Weather: Short period of time, this is where it rains or is windy for short period of time
Climate: This is where weather conditions take place forever and if it changes then it will be the same forever

Question 14

Name and describe three ways in which height van be indicated on a map.

Answer 14

There are 3 main methods of showing height on maps that are spot height , layer colouring and contours

Spot height
A point on a map with a number giving its height above sea level in metres

Layer colouring / layer shading
A method of showing height on a map by using colours.

Triangulation pillar
A concrete pillar used by surveyors to find the exact height and position of a place .

Question 15

Give a clear definition of contour lines

Answer 15

Contour lines is a line on a map or chart joining points of equal height or depth

Question 16

Another name for a map key is a map…..

Answer 16

legend

Question 17

People who draw maps are called?

Answer 17

Cartographers

Question 18

Blue is most commonly used on maps to indicate the presence of…?

Answer 18

Water and marches

Question 19

Define the three types of map scales that you get

Answer 19

a) Ratio scale:- This is a scale where you determine length with numbers
b) Word Scale:- The same as Ratio scale only this is in words
c)A linear scale consists of a line, divided into primary units, with secondary units to the left of the 0.
Remember that the primary units to the left of the 0 must be exactly the same size or length as the
primary units to the right of the 0.

Question 20

Change the following scale into a ratio form:

1cm = 19km

Answer 20

1cm=19km
=1cm:19000m
=1cm:190000cm
=1:190000