the relationship between mass and volume I known as density
Piney woods could be considered valuable for many reasons such stated. Piney woods is gone to many different ecosystems and it also provides shelter and is a home to many animals and insects, some among those are endangered or could become endangered in the near future. Although this could harm the environment Piney Woods could be also be valuable for the possibilities of financial gain.It could provide financial gain in many ways such as cutting down trees for wood and other resorts and it you could also gain money by hunting or killing the animals and organisms housed within Piney Wood.This paragraph just stated a couple ways Piney Woods is valuable or how it can be of value but there is also many other ways Piney woods could and will be considered valuable for.
I hope this helps :)
South Africa, it's a city in India
I think the Meridian Line
In divergent boundaries, plates move away from one another, often causing volcanic activity. The cooled magma is able to form islands such as the ones on the Aleutian archipelago.
*I don't think any of these are actual types of mountains. <em>Arc contient </em>and <em>Andean</em> aren't even real things.
As for your second question:
There are two main types of rocks in the Earth's crust.
Granite is less dense and rises higher, usually above land in continental crust.
Basalt is denser and so it will sink lower and form oceanic crust.
However, there is a layer of sediment on top of that crust. (sand, gravel, etc.)
