I believe it’s b I’m not 100% sure tho
Answer:
13, 320km
Explanation:
Step 1:
Measuring distance = differences in latitude
If the latitudes are in the same hemisphere subtract e.g. North and North, but if the latitudes are in different hemispheres then you add.
To find the distance between Town A and B, since they are in different latitudes( North and South), you subtract.
distance=(latitude+latitude)×111 km
= 50°+70°
=120°
Step 2: convert to km
Since 1°=111 km
∴ 111 km×120°
= 13,320 km
Hope this helps!!
The map of the United States that is representing the soil erosion, shows us a trend that the soil erosion is the biggest in the areas where there is the most agricultural activity in the country, mostly the Midwest, the southern part, and the lowlands east of the Appalachians.
It is no wonder that the areas where there is the highest agricultural activity have the highest wind and water erosion. What is now agricultural land, in the past had a natural protection of wild plants, but now it doesn't.
The constant plowing of the soil results in making the soil much more loose several times in a year, sot he wind is able to pick up particles easily, and the water is able to easily move the top layers.
The heavy usage of pesticides, herbicides, fungicides, and artificial fertilizers are also making the soil very loos, so the erosion has big effect.
Depending on the irrigation method, it can have a big effect, especially if it is irrigation through ditches, as the water will be pushing from one side and moving toward the other side, moving the top soil with it.
