Answer:
False
Explanation: Fish can't swim up the stream. Pond plants & animals would start to live there instead of stream plants & animals.
Density (a) is the correct answer
<span>Scientists believe that differences in density cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. </span>
We can solve this problem, if we use the rule of three.
x=the actual distance between these towns
1 cm----------------78 Km
3 cm---------------- x
1cm *x=3 cm * 78 Km
x=(3 cm * 78 Km) / 1cm=234 Km
Solution: 234 Km
