Choose the correct statement(s) specifically related to the phenomenon of 'continentality'. a. The sea exerts a moderating influence on climate. b. As the distance from the sea increases, people experience extreme weather conditions. c. As one goes from the surface of the earth to higher altitudes, the atmosphere becomes less dense and temperature decreases.

With reference to the Madden-Julian Oscillation (MJO), consider the following statements: I. It is an eastward-moving tropical disturbance rather than a stationary atmospheric trough. II. It is associated with alternating phases of enhanced and suppressed cloudiness, convection and rainfall. III. It generally operates within the tropical belt between 30°N and 30°S latitudes. IV. It can influence monsoon variability as well as tropical cyclone activity. Which of the statements given above are correct?

Which of the following correctly explains the formation of clouds in the atmosphere?