Contour lines determine the steepness of the land by how close they are together. Generally, contour lines rise to a particular scale (e.g. a line for every ten metres), therefore, if the contour lines are closer together then the height of that particular area has risen more steeply than if the contour lines are further apart where the steepness has increased more gradually.
Answer:
Yes
Explanation:
The General Mining Act of 1872 , needs to be reformed because there is a clause in it that there will be no protection of environment. This cannot be justified seeing the present day scenario as environment has come under huge stress due to anthropogenic activities including mining. Sustainable development is more important than increasing economy. Environment protection will also help in economy boost in a long run by reducing the costs of rejuvenating the damaged ecosystem in future.
Im not sure what you mean but, <span>Plate tectonics is the theory that the outer rigid layer of the earth (the </span>lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surface relative to each other, like slabs of ice on a lake. the theory can best be described as <span>earth's natural process by which its lithospheric plates slowly move about because of movement in the asthenosphere. </span>
D. high and low levels of silica in the different type of lava.
Explanation:
The volcanoes have different types of explosions. Some tend to be highly explosive, some less explosive, some don't have explosions at all, while some have combinations of different eruptions. The reason for this diversity in the eruption types is mostly the composition of the magma, or rather how high is the silica content in it.
Basically, the higher the silica level in the magma the higher the explosiveness, and the lower the silica level the lower the chances of explosiveness. This is the case because the higher amount of silica makes the magma thicker, so the gasses are trapped and they explode, while when the lower silica content makes the magma less thick, so the gasses are not trapped and explosions are lacking.
Okay, so we're starting with d = rt. "Distance equals rate times time." If you divide both sides by t, you would get r = d/t. So, your answer is A. Another explanation: let's say you've traveled 120 miles in 2 hours. How fast were you going? To solve that, you would divide your distance (120) by your time (2) to get 60 mph. So, rate = distance/time.Hope this helps.
