4) Polaris
Stars emit light with energy generated by nuclear fusion, think of the Sun as an example. Polaris is a star, it's the brightest star in the little bear constellation, and therefore the correct answer.
This is false, as the equator does not run north-south. The equators is the line that goes all around the planet in equal distance from the two poles: so it runs west-east.
It is true however that it runs roughly through the middle of the continent of Africa, but rather on the west-east axis.
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Answer: b. Orchid mantises tend to be advantaged in habitats that remain constant; the rain forest habitat is likely to shift because of global climate change.
Explanation:
The orchid mantis is a predator in South East Asia that camouflages itself as an orchid to catch its prey.
While the tropical cockroach is a more hardy specie, the optimum habitat for orchid mantises is one with limited variation in temperature, moisture and humidity. Therefore, as temperatures increase and climate change results in severe weather changes, it will lead to adverse effects on orchid mantises.
Answer:
Cold and harsh winters exist in this region, which is known for large cities and universities.
Explanation:
The Northeast of the United States is the most developed and most densely populated region of the country. This regions is by far the smallest of the five major regions of the United States. The Northeast region borders Canada on its north, the Atlantic Ocean on its east, the Southeast region on its south, and the Great Lakes area from the Midwest region in its west.
The climate in this part of the country is known for its fresh and pleasant summers. There is solid amount of precipitation throughout the year. The winters tend to be very cold and harsh, with temperatures often going below -30 C degrees, and intense snowfall being a common occurrence.
As mentioned, this region is very densely populated. The main reason for this is that it is the economic center of the United States, so there are large urban areas in it, and the landscape is dominated by settlements. Some of the largest cities in the Northeast are new York, Boston, Philadelphia, and Buffalo.
There are also numerous student towns in the area, mostly on places further away from the large urban areas. Millions of students visit these universities each year, and they are predominantly with very high reputation.
