Pls can someone help me with question 29 asap

Rain is pulled by gravity which is a non contact force

250✖️100 to get you answer

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.