Possible question and essays for gr 12 Life Scences

Explanation:

Possible Essays for Life Science:

1. "Explain four management strategies to improve the quality of  drinking water. Uncle Two sources of water pollution and Two  effect of water pollution on human health. "

2. "Eutrophication is one of most important water quality problem  South Africa. Describe Eutrophication, what causes it and how it  affects water quality."

3. "Describe the significance of DNA replication and meiosis and how the foetus is  protected and nourished in the uterus."

4. "Describe how meiosis contribute to genetic variation and how

abnormal meiosis leaf to down syndrome and polyploidy. Also

describe advantages of polyploidy in agriculture. "

the answer is c.) there is a warm front in region a and a stationary front in region b.