Please help me on this question:

33. Wind and water alter the Earth's sufrface by
a. blowing away soil and eroding soft rocks
b. eroding coastlines
c. carving deep gorges
d. all of the above

I read about this a long time ago, so I don't even remember where it is in my book. Please, do help me.
Thankyou

Look up erosion in the index of your book.

Or -- Google erosion.

is it A?

How do you think the Grand Canyon was formed?

I do remember in FFA a poster of the Grand Canyon, with the caption " This could have been prevented with contour plowing".

http://en.wikipedia.org/wiki/Contour_plowing

To answer this question, we need to understand what wind and water do to the Earth's surface. In this case, we are looking for the option that includes all the effects of wind and water on the Earth's surface.

To start, we can eliminate option a because it only mentions blowing away soil and eroding soft rocks. While this is true, it doesn't encompass all the effects of wind and water.

Next, we can eliminate option c because it only mentions carving deep gorges. While this is also true, it doesn't cover all the effects of wind and water.

Now we are left with options b and d. To determine the correct answer, we need to consider whether wind and water erode coastlines. It is well-known that wind and water play a significant role in wearing away coastlines over time. They erode the land through processes like coastal erosion and wave action.

Therefore, the correct answer is d. "All of the above" includes all the effects mentioned in the options: blowing away soil, eroding soft rocks, eroding coastlines, and carving deep gorges.

If you want to find more information or confirm the answer, I recommend referring to your textbook or conducting further research on the effects of wind and water on the Earth's surface.