Consider the following statements about the Earth's atmosphere:
- About 97% of the total atmospheric mass is confined within 29 km from the Earth's surface.
- The ionosphere is responsible for reflecting low-frequency radio waves.
- The troposphere extends up to about 50 km above the surface.
- The exosphere gradually transitions into interplanetary space.
Which of the above statements are Correct?
1
1 and 4
2
1, 3, and 4
3
2 and 3
4
1, 2, and 4