Explanation:
Whereas primary tissues allow for vertical growth, secondary tissues allow for lateral growth: they allow stems and roots to become wider. In roots, the formation of both secondary meristems involves the pericycle.
Many reasons including that burning of them (including use in cars) creates greenhouse gases which lead to climate change. There are alternatives becoming available that lower the greenhouse gas emissions...healthier planet!
If you divide 378 by 9 you'd find out the answer to this problem which would be 42 miles per hour
