The asteroids between the orbits of mars and jupiter were once a planet. o true false

False

Explanation:

In the vast majority of cases, the asteroid's orbit is between those of Mars and Jupiter, more precisely between 2 and 3.5 astronomical units, in what was called the asteroid belt.

The size of these objects varies between several hundred kilometers, for some rare specimens such as Ceres, and a value of the order of 10 meters (under this maximum limit we will talk about meteoroid). They are irregularly shaped bodies made up of rocks and metals like telluric planets.

The first hypothesis regarding the origin of the asteroids was the explosion of a planet located between Mars and Jupiter, of which these small bodies would be the residue. This idea has, however, been abandoned, because the total mass of the asteroids would allow to reconstruct only a very small planet, with a diameter just half that of the Moon.

Today planetologists think that asteroids are bodies that failed to agglomerate to form a planet because of Jupiter's influence.

An indication in favor of this theory is the presence of holes in the distribution of the asteroids belt orbits. Indeed, the orbits where the period of revolution would be equal to a simple fraction of that of Jupiter, for example, half or third, are empty.

Such a phenomenon can only occur if there is regular accumulation of an identical force over a very long period, therefore, if the period of the object and that of Jupiter are in a simple relationship, for example, half. It is this phenomenon, called resonance, that explains the holes in the current distribution of asteroid orbits.

It is the phenomenon of resonance probably responsible for the absence of a fifth telluric planet between Mars and Jupiter. Indeed, planets were formed 4.6 billion years ago by the agglomeration of dust in small bodies called planetesimals, which in turn regrouped to form massive bodies.

hi there,

on december 11, 2001, china officially became the 143rd member of the

world trade organization (wto) in the culmination of a negotiation

process which began in 1986. economists have long been debating the

global effects of china's accession to the wto, and as china becomes

fully integrated into the organization over the next several years,

the accuracy of their predictions will be tested.

one of the biggest residual effects of china's entry to the wto,

according to economists, will be the relocation of manufacturing and

distribution centers to china. due to its cheap labor, cheap

industrial land, and educated workforce, china is an ideal production

centre for businesses based in outside countries. this will likely

result in a twofold impact – more jobs will be available in china,

while countries like india, which have historically offered cheap

labor, will suffer. taiwan and malaysia's technology industries are

already suffering as companies like dell computers move production to

china, and while foreign investment soars in china, other asian

countries suffer. in addition, mexico and the caribbean will lose

thousands of garment manufacturing jobs as the u.s. lifts restraints

on chinese textile imports.

while the impact on southeast asia may be negative, the western world

may benefit. while some suggest china's open borders will result in

increased competition and a decreased employment rate for the western

world, western countries will benefit from access to china's highly

developed electronics and industry sectors. with duties and quotas

slashed, and restrictions lifted, multinationals will benefit by

setting up distribution centers without the need for chinese

middlemen. in addition, it's expected that china will import massive

amounts of food products, machinery and vehicles from the u.s., japan,

hong kong, taiwan, singapore and south korea, thus providing

significant boosts to these countries' economies.

in conclusion, it seems that while western countries may benefit from

china's accession to the wto, there's the potential that asian and

south american countries may feel the pinch of free trade as china

moves to a global economy.