Question
approximately every years, the earth's revolution changes.
o
50,000
o
26,000
o
1 million
0
12,600

what best describes physical development during adolescence is the development of secondary sex characteristics happens at a rate unique to each individual.

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."