The correct answer is <span>2.Planting trees throughout a flood zone
If there are many trees then the land is firmer and more tightly connected to the tree and erosion is prevented.</span>
Gravity is stronger, the closer the two objects are to each other - that's why you can "escape the Earth's gravity" if you go far enough from it.
So we have to look for the date with the shortest distance - it's 24th December 2010, when the distance was only 368000 km.
Answer:
I haven't studied this, I think, so this is off of what I think it might be, I suppose.
Explanation:
A: If it's widespread, it might be harder to govern everyone rather than if it was more compact. If it's bigger, one center of power in one part might not be able to handle monitoring the entire country as there's al lot of space, so their influence might not be felt throughout the entire country and rather more in the areas closest to it. Like how people who lived in England were seemingly more loyal to the king, but in America, which was an ocean away, more people seemingly felt and expressed their lack of connection to a ruler so far away.
B: If it's wide-spread enough, there might be different ideas of grouping based on it. If a river runs through it, for example, it could lead to a "east of the river" versus "west of the river" difference in how they identify. An example of this is in Italy where the North and South have differences between them or how in the U.S. there had been/is the idea of "The North vs. The South" or even "The North vs. The South vs. The Midwest vs. The West Coast".
Basically physical and chemical weathering (do not confuse with erosion, which involves movement) contribute to the destruction of mineral forms. In this case it breaks down the rocks, minerals and soils, creating slopes and hills. It may be caused by (any form of) water, wind, gravity, waves or sunlight.
