1. The answer is B. the asthenosphere
Asthenosphere is a layer of the Earth situated below the lithosphere. It is a semi-fluid and ductile rock or partly molten rock. Due to semi-fluid state of asthenospheric rock, it behave like a plastic and flow gradually. Thus, causes movement of continents.
2. The answer is C. collision between tectonic plates
The Earth’s crust becomes unstable when tectonic plates meet. As the plates slide past each other and push against each other. This causes earthquakes and volcanic eruptions at the edge between the plates.
Answer:
The Orpheus theory, which says that a planet-sized body once collided with Earth and that it sent some of the material into orbit, forming the moon.
You can cancel out A. And C. Out which leave two answers. D and B and considering buildings could be a way of adaption along with flood control systems. B makes the most sense.
Answer:
The importance of cotton can hardly be over emphasized in the economy of Pakistan. Pakistan is one of the ancient homes of cultivated cotton, 4th largest producer of cotton , the 3rd largest exporter of raw cotton and a leading exporter of yarn in the world.
Pakistan is, by and large, a mono-crop economy as cotton contributes nearly 10 per cent in the agriculture GDP and a source of 60 per cent foreign exchange earnings. The value addition through cotton is 8.2 per cent in agriculture and 2 per cent in the GDP.
