Climate Change

What is the definition of climate​?​

• the condition of the troposphere in a short time

• the average weather conditions over many years
• The study of clouds and precipitation
• The measurement of wind speed and direction

Answer explanation

Which of the following is/ are the evidence of global warming?

• 1. Rising global average temperature  

• 2. Increasing frequency and duration of heat waves 

• 3. Shrinking of ice caps in polar areas 

Answer explanation

Which of the following is/are the arguments against global warming?

• 1. Average air temperatures fluctuated throughout earth's history

• 2. Lack of accurate data to prove the recent changes in air temperature is abnormal

• Present temperature is still lower than the peak 130 000 years

• Human activities have little to no impact on it.

Answer explanation

Refer to the graph, which of the following descriptions about global average temperature is/ are correct?

• 1. The global average temperature has gone up by around 0.8 °C since 1880.

• The global average temperature fluctuated throughout the period.

• The rate of increase in the global average temperature was high since 1980.

Which of the following is/ are correct?

• The figure 25 shows the situation in June.

• The further away from. The Equator, the less amount of insolation received.

• 3. Daylight lasts for a long as 24 hours at then North Pole.

Answer explanation

Which of the following description abut X and Y is/ are incorrect?

• X has a larger angle of the sun

• X has a larger spreading area of insolation

• Y has a higher intensity of insolation

• Y has a lower air temperature

What is the importance of ozone in the atmosphere?

• Support life

• keep the earth warm

• Protect Earth from harmful UV radiation

• affect weather condition