Answer:
The glacier have high albedos the melting of ice in summers produces a positive mechanism.
Explanation:
- Over the time period, the ice melts and this leads to exposure of the dark grey rocks and causes more melting of the mountain glacier. The reflection from glacier snow is highest as ice absorbs less sunlight and keeps the surface cooler.
- Thus reflecting back 90% of sunlight, in summer months due to the erosion agents the ice begins to move and this adds to the positive feedback mechanism that melts glaciers.
Answer:
He attacked Carthage's possession in Spain - New Carthage, which led Hannibal to withdraw his troops from Italy and to send them to Carthage as he was afraid that Scipio will attack Carthage directly.
Explanation:
After the battle of Cannae it looked like Hannibal had Romans in his hands. But, he refused to attack Rome directly, which was used by Romans to produce counterattack.
Therefore, Scipio decided to attack New Carthage to make Hannibal turn his attention from Italy.
After this Scipio attacked Hannibal in Carthage and heavily defeated him in the battle of Zama.
Answer:
Option (A)
Explanation:
Gas giants and ice giants are collectively known as the Jovian planets. The gas giants are Jupiter and Saturn whereas the ice giants are Uranus and Neptune. They are called ice giants because they are far away from the sun and the temperature in that region is very cold.
They are both comprised of the atmospheric gases namely hydrogen and helium along with the presence of some other gases such as ammonia and methane. But<u> ice giants and gas giants differ from one another by the presence of a layer that contains the liquid metallic-hydrogen layer in the interior of gas giants</u>. It is absent in the ice giants. This metallic hydrogen layer is quite big in Jupiter than in Saturn, which could be due to the bigger size of Jupiter.
This layer of liquid hydrogen has formed due to the extremely increasing pressure and temperature condition that converts
the gaseous hydrogen into a liquid form.
Thus, the correct answer is option (A).
Answer:
Japan is a good example of a nation states because it mostly has one race, ethnicity and culture. This is what makes a nation state a nation state.
Explanation: