5. Answer the following questions in brief (Any Six) :- |
a) State any two features of Berring Sea.
b) Why inland seas are more saline than the open seas?
c) What are the main features of the Pacific Ocean?
d) What is Block Mountain? Give two examples.
e) What is a delta and where it is found?
f) Why graphical scale is a widely used scale?
g) What are uses of thematic maps?
h) What is RF?
plz answer me
Answers
Answer:
a) its berring
b)they contain salt
c) its water is salty nd its so deep
d) its black not block
e) area where two or more rivers meet nd sand form island nd river flow discharge in sea
Answer:
a)It comprises a deep water basin, which then rises through a narrow slope into the shallower water above the continental shelves. The Bering Sea is separated from the Gulf of Alaska by the Alaska Peninsula. ... The interaction between currents, sea ice, and weather makes for a vigorous and productive ecosystem.
b)The oceans and salt lakes are becoming more salty as time goes on because the rivers dump more salt into them, while fresh water is lost due to evaporation
c)The four features of Pacific Ocean are following.
It is the largest and deepest ocean. The temperatures of surface water in the Pacific Ocean can vary from −1.4 °C (29.5 °F) near the pole to 30 °C (86 °F) near the equator. Its salinity also varies based on the latitude.
d)Examples of fault-block mountains include the Sierra Nevada in California and Nevada, the Tetons in Wyoming, and the Harz Mountains in Germany
e)Deltas and human activity. Resources. A delta is a low-lying, almost flat landform, composed of sediments deposited where a river flows into a lake or an ocean. Deltas form when the volume of sediment deposited at a river mouth is greater than what waves, currents, and tides can erode.
f)The graphic scale is the most useful scale if the map will be reproduced and changed in size, because both the map and the graphic scale will change in the same ratio while the other scales will no longer be valid. To use the graphic scale, mark the distance between points on the edge of a sheet of paper.
g)Thematic map. A thematic map is a specialized map made to visualize a particular subject or theme about a geographic area. Thematic maps can portray physical, social, political, cultural, economic, sociological, or any other aspects of a city, state, region, nation, continent, or the entire globe.
h)Radio frequency is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around 20 kHz to around 300 GHz