The correct answer is (b) Jupiter has mass less than that of sun which cannot generate enough pressure which can start hydrogen fusion. Jupiter has similar composition as both are entirely made up of hydrogen and helium. They both differ in the core and mass. The mass of Jupiter is so small as compared that it would not be able to generate enough pressure to start hydrogen fusion. Jupiter's core is made of metallic hydrogen and the core of sun is so hot that the hydrogen splits into electrons and protons. This generates hydrogen fusion.
Thus, Sun a star and Jupiter is not a star.
Answer:
photic zone.
Explanation:
it is a high layer of the water region. There is no land at the top of the water, if we plant the tree there, the shrub will drift into the water. There is Sufficient daylight but there is no ground.
Scientist's once believed that living organisms could be created from non-living matter. It was known as Spontaneous Generation. In 1668, an Italian scientist, Francesco Redi, postulated that the theory of Spontaneous Generation is incorrect. He designed a scientific experiment to test the spontaneous creation of maggots. He put fresh meat in each of the two different jars. One jar was left open and the other jar was covered with a cloth. Several days later the open jar contained maggots; the covered jar contained no maggots in the jar - they were found on the cloth covering the jar. He thus successfully demonstrated that maggots came from fly eggs. He also thought he helped disprove the theory of Spontaneous Generation. Unfortunately, he did not.
Answer:
first one is c and the second is d.
Explanation:
B.
The windier part of the year lasts for 6.4 months, from October 13 to April 24, with average wind speeds of more than 8.3 miles per hour. The windiest day of the year is February 26, with an average hourly wind speed of 10.3 miles per hour.
