Rivers are lifelines in many dry regions of Africa. They provide the necessary water for agriculture, household uses, transport, and biodiversity. They fill the wetlands of inland and coastal deltas with fresh water, thereby maintaining the inhabitant’s livelihoods and biodiversity of these dynamic areas
The way the Earth's axis rotation affects the seasons depends on how far away the Earth is from the sun. When one part of the Earth is tilted toward the sun then it's summer and the other part of Earth is having winter.
Answer:
Correct answer is (a). Assimilation of immigrants into the existing population.
Explanation:
The frequency distribution will not change from generation to generation once a population is in Hardy-Weinberg equilibrium. However, on assimilation of immigrants into the existing population, the equilibrium will definitely change.
The town is which I live is Negotino, Republic of Macedonia. The is located in the driest part of the country, so it is very common that there's problems with water during the warmer part of the year. The landscape is mostly dominated by two things, vineyards and barren land which has the characteristics of a is semi-desert, so the town, and the municipality as whole, lacks in wood as well.
My two suggestions for making the town and the surrounding area more sustainable would be:
1. Planting the whole barren land with wild or semi-wild apricots
The wild and semi-wild apricots thrive in this climate, do not need any maintenance, don't have problems with high temperatures and droughts, nor with very low temperatures. From those apricots, the fruits can be used for production of juices and kompots, selling them for much lower prices in the municipality and throughout the country, so the municipality can get a significant income, income that can be used for improving the town's infrastructure and any projects. The shells of the apricots are excellent for heating, thus can be distributed to the households throughout the town as a material for heating during the winter. The trees will also contribute to better air quality and lower the effects of the strong winds.
2. Construction of water collectors
Construction of water collectors will be extremely useful, considering the semi-arid climate in the area. The water collected during the spring and autumn can be used for all sorts of things in the town, thus minimizing, or maybe even eliminating the water problem during the drier parts of the year.
