In which layer can space weather effects be important despite low atmospheric pressure?
Answer and explanation
Correct answer: Thermosphere
The thermosphere is exposed to changing solar ultraviolet and X-ray output, energetic particles, and geomagnetic disturbances. Its pressure is extremely low, but the sparse gases absorb high-energy radiation and respond strongly to solar activity, causing heating, expansion, and changes that matter for satellites and radio propagation. Therefore option A is correct. The lower atmospheric regions are more directly governed by weather and surface processes than by space-weather disturbances.
Frequently asked questions
What is the correct answer to this question?
Thermosphere
Why is this the correct answer?
The thermosphere is exposed to changing solar ultraviolet and X-ray output, energetic particles, and geomagnetic disturbances. Its pressure is extremely low, but the sparse gases absorb high-energy radiation and respond strongly to solar activity, causing heating, expansion, and changes that matter for satellites and radio propagation. Therefore option A is correct. The lower atmospheric regions are more directly governed by weather and surface processes than by space-weather disturbances.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Trial Balance and Rectification of Errors.
