Answer:
As the main sequence star glows, hydrogen in its core is converted into helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts. The outer shell of the star, which is still mostly hydrogen, starts to expand. As it expands, it cools and glows red. The star has now reached the red giant phase. It is red because it is cooler than it was in the main sequence star stage and it is a giant because the outer shell has expanded outward. In the core of the red giant, helium fuses into carbon. All stars evolve the same way up to the red giant phase. The amount of mass a star has determines which of the following life cycle paths it will take from there.
diagram of the life cycles of low and high-mass stars
The life cycle of a low mass star (left oval) and a high mass star (right oval).
the different evolutionary paths low-mass stars (like our Sun) and high-mass stars take after the red giant phase. For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.
Explanation:
There is only a single part of the body that is able to get oxygen directly from the air and that is the <u>Cornea</u>.
The cornea is:
- At the front of the eye.
- Is clear which allows for the bending of light which is why blood cannot be there as it would mess with this process.
For this reason, the cornea gets no blood and so has to get its oxygen from the air unlike the rest of the body that gets it from blood supply.
In conclusion, the Cornea is the only part of the body that gets oxygen from the air.
Find out more about the Cornea at brainly.com/question/25748896.
Answer:
1
Explanation:
The star will appear the largest at position A because it is closest to the star.
Answer:
AS A GEOGRAPHY STUDENT AND LEARNER HERE'S MY ANSWER.
Explanation:
FIRST, THEY ARE BOTH BEAUTIFUL AND POPULAR HOLIDAY PLACE.
SECOND, THE PLACE ARE BOTH HAS COLD WEATHER.
THIRD, THEY HAVE BOTH BEAUTIFUL TOURIST ATTRACTION AND SCENERY, LIKE BURNHAM PARK, MINES VIEW, LION HEAD IN BAGUIO, AND TAAL LAKE AND TAAL VOLCANO IN TAGAYTAY.
FOURTH, THEY ARE LOCATED IN A BEAUTIFUL GEOGRAPHICAL LOCATION LIKE MOUNTAINS WHERE BAGUIO STANDS AND TAGAYTAY STANDS BEHIND THE TAAL LAKE AND VOLCANO.
that's it what I know
Answer: It is located in the Darling River.
Explanation:
The Sutherland Falls is a large waterfall so named after Donald Sutherland who was the first Westerner to discover the falls in 1880.
It has a drop of 1,904 ft and indeed is one of the world’s largest waterfalls.
Located on New Zealand’s South Island, it falls from Lake Quill not the Darling River.
Indeed the Darling River is located in Australia not New Zealand making yhe last option incorrect.