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Genrish500 [490]
3 years ago
8

Describe dwarf planets and their orbits in the solar system

Biology
1 answer:
WITCHER [35]3 years ago
6 0
        Dwarf Planets<span> of Our </span>Solar System<span> (Infographic) Pluto was demoted to </span>dwarf<span> planet status in 2006, joining Eris, Haumea, Makemake and Ceres. ...

      Pluto, discovered in 1930, </span>orbits<span> the sun at an average of 39.5 times the Earth's distance. </span>Its<span> diameter is 1,430 miles (2,302 km)

</span>

Dwarf planets are worlds that are too small to be considered full-fledged planets, but too large to fall into smaller categories.

In recent years, there's been a lot of hubbub about Pluto losing its status as one of the planets of the solar system. Pluto is no longer considered the ninth planet in the series of major planetary objects, but instead is now just one of the many so-called "dwarf planets." The debate started anew after the New Horizons mission passed by Pluto in 2015, revealing a world of surprising geological complexity. As of 2017, delegates from the mission are trying to get Pluto's planethood status back. 

Astronomers estimate that there could be as many as 200 dwarf planets in the solar system and the Kuiper Belt. But the differences between planets and dwarf planets may not be obvious at first. 

Dwarf planets of the solar system

The International Astronomical Union defines a planet as being in orbit around the sun, has enough gravity to pull its mass into a rounded shape (hydrostatic equilibrium), and has cleared its orbit of other, smaller objects. This last criterion is the point at which planets and dwarf planets differ. A planet's gravity either attracts or pushes away the smaller bodies that would otherwise intersect its orbit; the gravity of a dwarf planet is not sufficient to make this happen. [Meet the Dwarf Planets of the Solar System]

<span><span>Meet the dwarf planets of our solar system, Pluto Eris, Haumea, Makemake and Ceres.Credit: Karl Tate, SPACE.com contributor</span></span>

As of 2014, the IAU recognizes five named dwarf planets: Ceres, Pluto, Eris, Haumea, and Makemake. But those aren't the only ones. Other solar system bodies that are possibly dwarf planets include Sedna and Quaoar, small worlds far beyond Pluto's orbit, and 2012 VP113, an object that is thought to have one of the most distant orbits found beyond the known edge of our solar system. The object DeeDee could also be a dwarf planet, according to observations made in 2017. According to NASA, scientists think that there may be more than a hundred dwarf planets awaiting discovery.

However, the debate over the status of dwarf planets, particularly Pluto, remains a hot topic. The primary concern stems from the requirement for a planet to clear out its local neighborhood.

"In no other branch of science am I familiar with something that absurd," New Horizons principle investigator Alan Stern told Space.com in 2011. "A river is a river, independent of whether there are other rivers nearby. In science, we call things what they are based on their attributes, not what they're next to."

Is a dwarf planet a separate entity from a planet, or simply another classification? The question may not be settled in the near future.

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A
Goryan [66]

Answer:

my choice is B

Explanation:

matched by the floor pushing up on your body cuz technically the body has greater force applying on the floor so the floor reacts by pushing your body up

(not clear so thanks, sorry and hope I was helpful)

7 0
3 years ago
Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offsprin
marysya [2.9K]

Answer: 2 in 4

Explanation: if the parents are both RB, one would end up red, one would end up blue, and 2 would be heterozygous and end up presenting the incompletely dominant color of purple.

3 0
3 years ago
In how many cells are the functions of unicellular organisms performed?
Readme [11.4K]
The root word of Unicellular already tells you the answer. Uni means only one cell. So the answer is one cell.
4 0
3 years ago
When people receive organ transplants, they often need to take medications that decrease immune responses because * 2 points D.
Oksana_A [137]

Answer:

The correct answer is A. transplanted organs contain antigens that can trigger white blood cell activity

Explanation:

The body's immune system is designed to seek out and destroy any foreign object it finds in the body, such as a cold or flu virus - or a transplanted organ. The process of destruction of the transplanted organ is called rejection.Immunosuppressive drugs will be provided to prevent your immune system from damaging the transplanted organ. Organ transplants require the use of immunosuppressive drugs capable of controlling the immune response triggered by the presence of antigens foreign to the body itself. The group of immunosuppressants is made up of drugs indicated both in the prevention of rejection of the transplanted organ and in its reversal.

3 0
3 years ago
As far as Alzheimer's researchers know, the primary cause of Alzheimer's disease is:
xxMikexx [17]

Answer:

a. deterioration of neurons that produce the neurotransmitter acetylcholine.

Explanation:

Alzheimer's disease -  

It is a disease associated with memory , it is a type of dementia .

The initial stages of the disease is the remember new things , the day to day task becomes very difficult with time .

During this disease the neurons get deteriorated day by day , which are responsible to produce the acetylcholine .

Hence , the correct statement about Alzheimer's disease is ( a ) .

4 0
3 years ago
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