Answer:
For the process of gold mining , Na₂CO₃ is better than Fe₂O₃
Explanation:
<u>The task of a gold miner , is to extract gold .</u>
For the process of Gold mining , carbon filters are preferred , because by using carbon filters gold can be easily extracted .
In general , silver and gold get adsorbed on the surface of carbon , hence can be very conveniently extracted from the solution .
Answer:
Texas is the leading crude oil- and natural gas-producing state in the U.S
Explanation:
Angola's borders are fairly straight compared to borders of any other country. The coastline and the southern lines are straight while the eastern and northern borders have stair-like shape but are fairly straight too. The country looks like a gun in some way too!
Answer:
D. It has the same kind of vegetation throughout.
<span>A topographic map is the best tool for this purpose.
In addition to being used for directional navigation, topographic maps also give the user a means by which to understand elevation in the area they climbing. These maps include topographic lines where each line represents an elevation and the distance between lines can be used to determine the terrain profile.</span>