Volcanoes are formed when magma from within the Earth's upper mantle works its way to the surface. At the surface, it erupts to form lava flows and ash deposits. Over time as the volcano continues to erupt, it will get bigger and bigger.
The map best suited for maritime is mercator projection
Answer:
The correct statement for comet is - ( a ) They have highly elliptical orbits around the sun
Explanation:
The comet is made up by the composition of dust , water , ice , rock and frozen gases like , the carbon dioxide , methane , ammonia and carbon monoxide .
Comet shows a process called outgassing , i.e. , the comet passes close to the sun , then they start to release gases , which is visible in the form of a comet's tail .
The comet and its tail glows by the sun and becomes visible when the comet passes through the solar system , because the dust partials reflects sunlight directly and the gas glows due to ionization process.
The orbital of comet is usually highly eccentric elliptical path .
Explanation:
When a destructive wave hits a coastline, it causes the washing away of the coastline and erosion of the beach fronts.
When a constructive wave hits a coastline, new sediments are deposited there.
Coastline is an area along the shore that straddles between the continent and the ocean.
A destructive wave is a very high energy wave that moves materials from the coast in to the ocean. They cause the washing away of the ocean fronts.
A constructive wave are usually of low energy. They bring materials landward more than towards the ocean.
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Answer:
Global warming might cause rising sea levels and severe drought. ... (Also discuss whether power should remain with individual countries or be placed in an all-European government.) Think about the physical and human geography of Europe.