Answer:
The largest mass extinction ever recorded on earth was that which occurred at the end of the end of the Permian period.
Explanation:
The largest mass extinction of species ever recorded on Earth, which occurred 252 million years ago and eliminated 96% of marine fauna, occurred at the end of the Permian period and was the result of global warming and left the animals of the oceans without sufficient oxygen to survive.
The lack of oxygen caused by global warming explains more than half of the loss of marine diversity in this late Permian mass extinction and other factors, such as acidification or changes in the productivity of photosynthetic organisms, acted as additional causes, according to these scientists.
The situation at the end of the Permian, when the increase of greenhouse gases in the atmosphere generated higher temperatures on Earth, is similar to the current one.
C) Western expansion spread the U.S population over a wider area.
<u>ANSWER:</u>
Collisional plate boundary led to the 'creation' of the Himalayan Mountains.
<u>EXPLANATION:</u>
- Himalayan Mountains have been form bed because of the 'collision' of the 'Indian Plate' and the 'Eurasian Plate'.
- The collision process of the plates started almost '50 million years ago' and continues till date.
- The Indian plate is a major tectonic plate in the eastern hemisphere.
- The Eurasian plate and the Indian plate collide along the 'boundary' between 'India and Nepal' led to the formation of the Himalayan Mountains.
- The Indian Plate as well as the Eurasian Plate are moving till date causing the deformation and compression of both plates.
<span>In Economic conditions, uneven development is the increasing space between regions in the core, and in the periphery from globalizing the economy. </span>
