Answer:
D
Explanation:
A tectonic plate is composed of both continental and oceanic lithosphere. It is a large, irregular slab of solid rock. However, plate size can vary.
Answer:
The machine-gun was one of the deadliest weapons of the Western Front, causing thousands of casualties. It was a relatively new weapon at the start of the war, but British and German forces soon realised its potential as a killing machine, especially when fired from a fixed defensive position.
The Vickers machine-gun (above) was famed for its reliability and could fire over 600 rounds per minute and had a range of 4,500 yards. With proper handling, it could sustain a rate of fire for hours. This was providing that a necessary supply of belted ammunition, spare barrels and cooling water was available. When there was no water to hand, soldiers would urinate in the water jacket to keep the gun cool!
Explanation:
First nation people would support windmill technology because they recognize that windmill provide a clean source of renewable energy.
They are now aware of the dangerous effects of using non renewable energy namely fossil fuels which have been implicated in environment pollution and rise in greenhouse gases.
Windmills use wind power which is clean source of energy that can be relied on for decades and is cost effective, pollution free, clean and sustainable. One household can have all its energy needs met by one wind mill turbine. Windmills create power without using fossil fuels.
Answer:
c. they form adjacent to an intruding pluton, which provides heat for metamorphism.
Explanation:
- In metamorphic rocks, the contact metamorphism produces the aureoles in the surrounding zones of the rocks that get altered.
- There varies in the thickness from the from centimeters to several kilometers like the large granitic intrusions and they typically consist of non foliated rocks formed due to the heat sources and intruding plutons.
<span>Guyots are seamounts that have built above sea level. Erosion by waves destroyed the top of the seamount resulting in a flattened shape. Due to the movement of the ocean floor away from oceanic ridges, the sea floor gradually sinks and the flattened guyots are submerged to become undersea flat-topped peaks.</span>
