Ans: The Middle East is a geographical region that has been of great importance in history since ancient times. Strategically located, it is a natural land bridge connecting the continents of Asia, Africa, and Europe. In recent times its enormous deposits of oil have made the Middle East more important than ever.
For: People at a younger age already drink
For: Less kids will get arrested for under age drinking
For:. It will cause people to not sneak around their parents
Against: People could get hurt because kids are careless
Against: People at a younger age are not as good drivers and can cause wrecks if they drink and drive
Against: Parents would still stop their kids from drinking
Answer:
<u>Olivines an Pyroxene, and 5 to 10% of calcium oxides and aluminium oxides</u>.
Explanation:
- The upper mantle of the earth begins just 10 kilometers below the surface of the lithosphere and under the ocean about 35 km and ends to the lower mantel at 670 km.
- Here the temperature range from 200 to 900 degrees celsius, at the boundary is composed of 55% of olivines and 35% of pyroxenes, minerals such as garnet and spinal are also found.
- Lehmann discontinuity is which is an abrupt change caused by the p and s waves occurs at the depth of 220 km. In the upper mantel and lower crust, there exists a discontinuity called the Gutenberg discontinuity.
- Mantel forms the rigid liquid sphere on which the slabs move.
Answer: The correct answer is B anticlines and synclines
Explanation:
Answer:
(i) Hydroelectric power is a renewable energy source as it is replenished by natural resources like the sun, unlike coal-fired power plants that generate electricity using coal which is not a renewable energy source.
(ii) It is expensive regarding the cost of building dams and reservoirs, not only that it is dependent on the amount of water available as places like the deserts would find it difficult to generate electricity all year round considering the unavailability of rain in some months of the year.
Explanation:
Hydroelectric power plants produce electricity when water energy from a water source, examples are dams and reservoirs which are caused to flow so as to turn rotors on a turbine, thereby converting this process to electricity. Coal-fired power plants are also used to produce electricity through the burning of coal (fossil fuel).