Answer:
Explanation: A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle. Dunes grow as grains of sand accumulate. Every dune has a windward side and a slipface.
Because of natural evolution , ecosystems began to form broad belts for survival .
Answer:
taly is characterised by a Mediterranean climate with hot, dry summers and cool, wet winters. July is the hottest month with temperatures up to 30C (86F), and January is the coldest month.
Explanation:
The answer is Accretion of material by the supermassive black holes located in the galactic cores and this is the cause of intense luminosity of the galaxies that are active like seyferts as well as quasars.Hope this is the answer and would help.
