They happened in this order Marathon, Thermopylae, Salamis, Ionian Revolt. Hope this helps.
I believe the answer for the first question is B and the second one A, hope I helped! :)
Answer: 
Explanation:
Given
A Planet is moving at a rate of 3 cm/year
distance between planets is 1500 km
and 1 km=1000 m
1 m=100 cm
No. of years required to cover 1500 km=
Answer:
fruit nut seeds and meats if possible
Explanation:
fruits and nuts were around during fall and they could collect and store fruit was around in spring and meat was around in the summer