Answer:
C. the addition of new lithospheric mantle as a result of cooling
Explanation:
- The oceanic lithosphere is a part of the asthenosphere and the upper mantle and its thickness depend on the distance away for the mid-oceanic ridges.
- This is evident from the studies of the seafloor spreading and the cooling of the plates and rocks masses. As the hot magma upwells and then cools at a certain degree and the cooled plates move away from the center.
The answer is C. It is located at the geographic North Pole.
Answer:
The jet stream shifts north and south seasonally; because there is less cold air, it retreats northward into Canada during the northern hemisphere's summer
Explanation:
1. they smoke that cause the green house effect
2.the gasoline from cars goes into the air that you breath and the gas has cause pollution
3.by littering.The garbage that you liter with goes into the sewer which leads to the sea and can effect the sea animals and the sea food eaters
Answer:
rise in temperature and drier climate
Explanation:
- The most significant changes that occurred were the rose of the temperatures and the dying of the climate and this lasted for about the period of 299 to 251 million years and was followed by the Carboniferous period and it contributes to the success of the plants and the growth of the gymnosperms.