Answer:
The one on the top and right is water erosion, The one on the left is caused from a rock being there for so long is starts to become thinner because of the wind. Now the middle left is a natural basin that looks like water flowed through it so again water erosion. The middle right looks like the rocks and dirt fell off a mountain from being loosened from all the water,wind,humans and others so the kind of erosion is accelerated erosion. the bottom left is strong wind erosion. and the bottom right is a landslide. Hope this helps.
Explanation:
 
        
             
        
        
        
when two air masses coming together the boundary between the two is called a weather front
 
        
             
        
        
        
Answer:
66 acres
Explanation:
As is said in the problem, in Appleland you have 12 apple trees per acre (12 apple trees = 1 acre). To solve this question we must find how many acres are necessaries because there are 792 apple trees in Appleland as follows:
792 Apple trees * (1 acre / 12 apple trees) = 
<h3>66 acres</h3>
 
        
             
        
        
        
Answer:
Option: a. 200 million years ago
Explanation:
Million years ago, Earth had one supercontinent called Pangaea and surrounded by an ocean (Panthalassa). Alfred Wegener proposed the concept of one big continent after putting together different records of confirmation. He was able to give his theory by examining fossils of plants, trees, animals, and reptiles that found in different continents. About 200 million years ago, the supercontinent began to split up into two parts; Gondwana from Laurasia. Today's countries, including Africa, Antarctica, India, South America, and Australia are part of Gondwana, where Europe and North America from Laurasia.