A coastline is simply the meeting point of land and the seas or oceans. It includes all the beaches, cliffs, capes, caves, bays and estuaries that line up at the end of the land. These features may all be located close to each other on a coastline.
Answer:
Scientists believe that plate tectonics is an example of an internal force that changes the Earth’s crust.
Plate tectonics is a theory that describes the motion of seven large plates, and many other smaller plates of the Earth's lithosphere. When they collide they can make mountains or we can feel their motion as earthquakes. Their motion is responsible for the continental shift and it made our continents look the way they look today.
<span>Trade was important to the Sumer because there certain
resources that the Sumerians didn’t have.
These were stone, wood and metals like copper. Due to this lack of resources, the Sumerians
establish trade with other tribes as well as merchants. One is when inhabitants of the Zagros and Taurus
mountains bartered traded timber, limestone, gold, silver and copper with the
Sumerians. The Sumerians gave them wheat
and barley in exchange. Apart this,
boats were developed enabling them to transport goods for trade.</span>
Explanation:
Wien’s Law:
The law states that the wavelength at which black body emits maximum heat is inversely proportional to the temperature of the body in Kelvins.
1) Walls at 300 K
2) Ice water at 273 K :
3) Hot water at 373 K :
4)Skin at 310 K:
5)An incandescent light bulb at 3000 K
