Question

Choose the correct statements.
i. Wind speed is measured using an ammeter.
ii. Cyclones may form within tornadoes.
iii. Tornadoes are called ‘hurricanes’ in the American continent. In the Philippines and Japan it is called a ‘typhoon’
iv. IMD stands for India Meteorological Department.

• A. iv only
  
• B. i and ii only
  
• C. iii only
  
• D. iii and iv only
  

Answer 1

The correct option is A iv only


Wind speed is measured by an anemometer. Ammeter measures electric current.
A cyclone is a violently rotating mass of air in the atmosphere; tornadoes may form within cyclones.
Cyclones are called ‘hurricanes’ in the American continent. In the Philippines and Japan it is called a ‘typhoon’.
IMD stands for India Meteorological Department. IMD gives several warnings of cyclones.
Hence, only the statement "IMD stands for India Meteorological Department" is correct.