subject
Geography, 07.11.2019 23:31 shri1301

The distance from earth of the red supergiant betelgeuse is approximately 643 light-years. if it were to explode as a supernova, it would be one of the brightest stars in the sky. right now, the brightest star other than the sun is sirius, with a luminosity of 26lsun and a distance of 8.6 light-years.

ansver
Answers: 1

Another question on Geography

question
Geography, 22.06.2019 01:30
Consider a population of snowshoe hares in montana. their fur color changes in response to changes in day length. during the long summer days, they have brown fur, but as the days shorten in the fall, their fur turns white in preparation for winter. then as the days get longer in the spring, their fur turns brown again. their fur coloration acts as camouflage from predators. as climate change brings warmer fall temperatures to montana, colder temperatures with snowfall are coming later in the year, and there may be less snowfall overall. as a result, the hares' fur color may be mismatched to the color of their surroundings, making them more visible to predators. which snowshoe hares would have a reproductive advantage in this changing environment? which snowshoe hares would have a reproductive advantage in this changing environment? hares that change color in response to day length, as the current population does hares with a mutation that prevents them from changing color from brown to white hares with a mutation that causes them to change color in response to temperature rather than day length hares with a mutation that prevents them from changing color from white to brown
Answers: 2
question
Geography, 23.06.2019 14:30
Compared with the land in the highlands, the lowlands region of england a) rockier and more difficult for farmingb) the center of business and industryc)richer in coal reservesd)covered by more fertile farmland d) covered by more fertile farmland
Answers: 1
question
Geography, 23.06.2019 14:50
In what way does renewable energy differ form nonrenewable energy?
Answers: 1
question
Geography, 23.06.2019 17:00
In russia which of these challenges affects the transportation of both petroleum products and other goods?
Answers: 1
You know the right answer?
The distance from earth of the red supergiant betelgeuse is approximately 643 light-years. if it wer...
Questions
question
Mathematics, 04.05.2021 01:00
Questions on the website: 13722361