Q. Which of the following statements is not correct about Coronal Mass Ejections (CMEs)?

[A] These are large-scale eruptions of charged particles (plasma) and magnetic fields from the solar atmosphere into space

[B] Heating or cooling plasma will not occur in CMEs

[C] They can disrupt a range of ground- and space-based technologies and satellites on Earth

[D] CMEs travel outward from the Sun at speeds ranging from slower than 250 kilometres per second (km/s) to as fast as near 3000 km/s

Answer: B
Notes:

When CMEs propagate, several processes can exchange energy (electrical, kinetic, potential, thermal, and so on.), thereby heating or cooling the plasma.

Source: Astronomers spot a surprising solar eruption that maintains constant temperature

Blog
Academy
Community