Answer:
This question is incomplete due to lack of needed map/image, but the attached one is related with it. Correct answer is: D) 4
Explanation:
Sahel is the region to the south of Sahara Desert in the northern part of Africa, and it streches from Atlantic coast in the west (Mauritania) to Red Sea coast in the east (Sudan). It is some 5,500 kilometers wide.
In the attached map Sahel is shown in <em>yellow color</em>, and it is part of Dry Zone (more precisely Semi-arid climate). Semi-arid climate means that this is transitional zone between dry desert in the north and seasonally wet African savannas in the south.
Hey There!
Cattle ranching causes erosion which removes soil by wind or water.
Thank You!
Answer:
Visible light range (between 400 and 800 nm).
Explanation:
The Sun emits a large range of electromagnetic waves, from gamma rays (higher frequencies) to radio waves (lower frequencies), through X-rays, ultraviolet rays, visible light, infrared radiation, microwaves. The peak of the Sun's energy output is actually in the visible light range (between 400 and 800 nm).
In the graph I annexed, you can see a simplified representation of the energy emissions of the Sun versus the wavelengths of those emissions. The y-axis shows the amount of energy emitted at a given wavelength and the x-axis represents different wavelengths of EM radiation. In this graph is observable than the major emission of radiation emitted by the Sun is in the visible range.
I hope you find this information useful and interesting! Good luck!
Answer:
Explanation:
Geologists defines a mineral as a naturally occuring solid, which is inorganic with a uniquely ordered structure and a definite chemical composition.
Gold nugget based on this definition is mineral. It is a solid and it occurs naturally. It is made up of gold atoms.
Seawater is not a mineral. It is a liquid and does not have definite composition.
Quartz is a mineral with a definite composition. It occurs naturally and it is a solid.
Cubic zirconia is not a mineral. It is not naturally occuring. It is man made.
Obsidian is not a mineral. It is a mineraloid due to its form. It is glass-like in nature. In obsidian, the crystals do not have time to form an ordered structure.
Ruby is a silicate mineral. It is naturally occuring and fits the description of minerals.
Glacial ice is a mineral. It is solid, inorganic, naturally occuring, and has a definite composition.
Amber is an organic compound and not a mineral.
I think you wanted to know whether the statement in question is true or false. Based on this assumption, i am answering the question. It is absolutely true that the gap between rich and poor has become more marked, even in the most economically developed nations. This is a growing global concern. I hope it helps.
