Q. Consider the following statements:
1.Space weather refers to the conditions and phenomena in space that are influenced by the Sun’s activity.
2.Supergranular cells are a pattern of convection cells found on the Sun’s photosphere.
3.The solar cycle refers to the changes in the Sun’s temperature after the solar minimum.
Which of the statements given above are correct?
Answer: A
Notes:
Explanation –
Statements 1 and 2 are correct. Space weather is influenced by solar activity, including solar wind, solar flares, and coronal mass ejections, which can affect the Earth’s magnetosphere and technological systems. Supergranular cells are large convection patterns on the Sun’s photosphere, characterized by horizontal flows and a typical size of about 30,000 kilometers.
Statement 3 is incorrect. The solar cycle refers to the approximately 11-year cycle of changes in the Sun’s magnetic activity, including variations in sunspot numbers, solar radiation, and solar flares.
Source: The Hindu
