la tierra está formada por 3 capas la tierra el manto y el núcleo
B. The Sahar desert. The people from the south east of the continent migrated to other parts of Africa but not north Africa because the Sahara was in their way. This led to the ottomans to easily lay claim to North Africa and develop a Islamic and Arabic like culture.
Dry summers and wet winters
Answer:
B.lithosphere
Explanation:
Earth’s crust is made up of tectonic plates and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep.
Green house effect and global warming are more or less the same. The contrast however is that, the green house effect explains the idea of global warming but green houses dont contribute to global warming. Global warming occurs when harmful gases are released to the atmosphere, they then cause a barrier, a blanket like cover in the atmosphere which prevents sufficient heat loss from the ground. this increased heat that can not escape to the atmosphere because of the layer of gases then leads to global warming. this is the same principle through which a green house operates.