Answer:
correct answer is option D (Red Pine distribution will shift northward into Canada)
Explanation:
Forest tree species are expected to endure significant population changes
in response to warmer temperatures across the United States.Red pine forests are negatively impacted by extreme summer heat, especially those
that have not been thinned. Red Pine species can be adapted to a wider range of climate, several subtropical and tropical pines, have a high degree of genetic variation and tolerate a wide range of climates. Performance in multi-site provenance trials shows that they are adapted well to a wide range of climates Thus they may also be able to adapt to new climatic conditions in their natural habitat.
Their are other factors which also influence red pine occurrence like soil conditions, plant competition. These factors are likely to be additional constraints for the present species distribution and future distribution shifts.
From these factors it is found that Red pine distribution will shift northward into Canada over the next 200 years.
The Pacific Ocean touches the United States on the west.
Answer:
Marine fossils found on landmasses.
Explanation:
Earth is an active planet, with tectonic plates that constantly move across the surface and cause changes in the distribution of physical features. The changes, in a most basic manner, can be seen in the creation of new continental masses and new ocean basins, and the destruction of continental masses and ocean basins.
The oceans we see at present have not been around forever, but they formed where plates have started to separate, while in meantime the preexisting oceans have suffered decline and eventual destruction because of it. An excellent example of where there were oceans in the past are the marine fossils. In many parts of the world that now are part of the continents, there is a huge number of marine fossils, even on mountain ranges like the Himalayas and Andes. This proves that in the past, these landmasses were part of an ocean, but because of uplift they have risen up and became part of the landmasses.
