A)
Obw= 2*3,14*2 =12,56cm
Obw = 6,28*4 = 25,12m
Obw = 6,28*0,3 = 1,884cm
Obw = 6,28*10 = 62,8km
b)
Obw = 6,28*1 = 6,28cm
Obw = 6,28 * 1,5 = 9,42m
Obw = 6,28 *0,2 = 1,256cm
Obw = 6,28 *100 = 628m
c)
6,28*r = 10m
r≈1,59m
6,28*r = 1m
r≈0,159
6,28*r = 628mm
r=100mm
6,28*r = 3,5cm
r≈ 0,557cm
Hypothesis: An idea or explanation that you then test through study and experimentation; written as an "if...then" statement.
Answer:
Deforestation is when you clear a forest or treeline but cutting them down.
Explanation:
It can be bad and good in many ways. It can make space for Urbanization (Population that moves into an area) bit it can mess up the atmosphere because the carbon dioxide that the trees intake will be out in the open air as soon as it gets cut down.
The biggest economic challenge that effects North Africa and Southwest Asia is their economic dependence on oil and gas sale and it's price. This is what drives their economies, and is pretty much the only significant income they have. So any disturbance in the price of this two products is affecting them significantly. The world is also moving towards greener fuels and renewable energy, which puts this regions in a very bad position in the long term. So if they want to keep their economic stability they will have to follow the world trends and use their natural advantages to be competitive in the world market, or other wise they will crumble economically.
