Answer:
what are the options so I may answer
Answer:
OB. Run-off from fertilized land increases nitrogen levels in ecosystems and encourages algal growth. is the correct answer.
Explanation:
because This in turn is leading to global warming and weather changes.
Answer:
Tropical Zone
Explanation: Its near the equator with warm air masses with the average temperature in the coldest month is 18 °C. This is warmer than the average temperature of the warmest month in the polar zone.
Answer: peristalsis
Explanation:it's the contraction and relaxation of muscles as the bolus moves down the oesophagus
