S6 Geography Graduation Exam Revision

(a)   radiation is the energy transmitted from the sun to the earth in the form of electromagnetic waves. It is mainly composed of short wave radiation (< 4 µm in wavelength).

When the angle of the sun is 90°, it is known as the      (a)   sun.

Some of the radiation is (a)   by certain materials, which increase in temperature as a result.

Some objects (a)   the radiation back without absorbing or allowing it to pass through.

When the reflected radiation travels in different directions, it is called (a)   .

Heat is transferred through contact, from a hotter object to a cooler one.

• Convection

• Conduction

• Radiation

• Evaporation

Heat is transferred in the air by vertical circulation. Air heats up, expands and rises. Cold air from above contracts and sinks, replacing the rising air.

• Convection

• Conduction

• Radiation

• Evaporation

Heat is transferred to the atmosphere from the earth’s surface through long wave __________.

• Convection

• Conduction

• Radiation

• Evaporation

Latent heat is absorbed and stored in the water vapour when water changes its state from liquid to vapour during _____________.

• Convection

• Conduction

• Radiation

• Evaporation

The larger the angle of the sun, the _________ concentrated and the ___________ intense the insolation.

• more, less

• less, more

• more, more

• less, less