In 1912 Alfred Wegener (1880-1930) noticed the same thing and proposed that the continents were once compressed into a single protocontinent which he called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution.
Answer:
a.winter
b.spring
C.fall
D.summer
Explanation:
The variation in the Earth Sun distance each year have no effect on the season some other factors like earth tilts,elevation does
Answer:
Heart will beat 140 times in 2 minutes.
Heart beats at a rate of 70 beats per minute.
Explanation:
In 0 minutes heart beats 700 times
hence in 1 minute it will beat <span><span>70010</span>=70</span> times
and heart will beat 140 times in <span><span>14070</span>=2</span> minutes
