<span> The basin system only allows the planting of one main crop.</span>
Answer:
C: larger river systems
D:fewer geographic barriers
Explanation: I just did it
Peninsula
...................
Nile and the Tigris-Euphrates
<h3>The oldest tree in the world is:</h3>
<u>Methuselah</u><u> </u><u>Tree</u>.
<h3>It is found in the Inyo Country, California.</h3>