Answer:
B) build wind-powered pumps to use groundwater
The average distance is 16,000 km
Converging rate is 10 cm/year
1 km = 100,000 cm
= 16,000 × 100,000/10 cm/year
= 160,000,000 years
It will then take 160 Million years to collide.
Answer:
a)species x is anaerobic, and species y is aerobic
Answer:
Abnormal, unhealthy cells will develop.
Answer:
percentage of error= (3.4-31.)/(3.1)*100%=9.68%
Explanation: