Thunderstorms

#1. What is the approximate maximum diameter of a microburst?

• A20 km
• B50 km
• C4 km
• D400 m

#2. Which of the following causes echoes on meteorological radar screens?

• AWater vapour
• BFog
• CAny cloud
• DHail

#3. What are the requirements for the formation of a thunderstorm?

• AA stratocumulus cloud with sufficient moisture
• BA cumulus cloud with sufficient moisture associated with an inversion
• CAn adequate supply of moisture, conditional instability and a lifting action
• DWater vapour and high pressure