Answer:
c. Graded beds are evidence of a decrease in current velocity during deposition whereby coarse sediments settle out first, followed by finer sediments as the velocity decreases over time.
Explanation:
Answer:
Much of the X-ray and UV radiation from the Sun is absorbed in the thermosphere. When the Sun is very active and emitting more high energy radiation, the thermosphere gets hotter and expands or "puffs up".
Explanation:
South America, i believe. You might want to double check this to be sure that it's right!
Answer:
Magmas are mainly liquid and contain dissolved fluids such as water, most are less dense than the adjacent solid rock and so move upward.
Explanation:
Magma -
It is a semi solid particle and the igneous rocks are formed from magma .
Magma is basically found inside the surface of the Earth and may come out from Volcanoes , due to any tectonic movements .
The composition of magma is basically molten form of rock along with gas bubbles and some crystals .
The magma is very dense in nature and slightly viscous and hence can flow , being semi - solid in nature .
North Sea is where large deposits of oil are located
