Answer:
When looking north, you see stars appear to move in circles.
Explanation:
- The motion of stars in northern hemisphere shows the circular motion that follows the path around the Polaris.
- As it takes 24 hours to complete one full circle, so during a night less than 12 hour, we see only certain part of path i.e. stars moving in an arc.
- And if you're facing north, they are moving from west to east.
- So depending upon the time of observation the stars may take the path of an arc or the full circle.
Explanation:
he has done this because British people recognise the name David more as it is common in the UK.
Sand can be trucked in from other sources and filtered for sediments to eventually make way into the air and water. They can also build seawalls, revetments, and jetties along the shoreline. :)
The Midwest is the biggest agricultural region in the United States, and of the biggest in the world. It is a region that has specialized in the production of several crops that are highly demanded on the market, and are used for multiple different things.
The reason why the Midwest has became an agricultural center is that it has very deep and highly fertile soil. The soil is of such a good quality because naturally this region is a grassland, so the enormous amounts of decaying grasses have created a very good soil suitable for growing numerous types of plants.
Unfortunately, converting the region into an agricultural center has caused lot of environmental problems. The grasslands have mostly been destroyed, and with it the habitat of lot of animals. The extensive usage of pesticides and other chemicals has resulted in pollution of the waters. The mechanization used in the agriculture has become one of the major contributors to the greenhouse gases emissions. Because big portion of the region is semi-arid, or only gets sufficient amounts of rainfall seasonally, the aquifers have been depleted.
Europe's physical geography, environment and resources, and human geography can be considered separately. Europe's rich agricultural and industrial diversity has made the continent a centre of trade and commerce for centuries. It is centrally located between the two other “Old World” continents, Africa and Asia.
Europe did use to have lots of larger states and empires but most of them have broken up and are mostly arranged along ethnic lines. So there aren't many multi-ethnic states left in Europe anymore and a lot of these states were created due to wars.
