Answer:
Around 4.5 billion years ago the solar system was formed by a cloud of dust, hydrogen, helium and other gases. they were part of a bigger cloud called a nebula. This cloud was pulled by gravity and collapsed. A circular material was created around, the pressure of this material created energy and formed the Sun.
.Explanation:
The value of goods and services produced within a country in a year<span>
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Answer:
The spectral types and sub-classes represent a temperature sequence, from hotter (O stars) to cooler (M stars), and from hotter (subclass 0) to cooler (subclass 9). The temperature defines the star's "color" and surface brightness. ... Stars are also classified by luminosity class.
Explanation:
The generation of electricity through nuclear<span> energy reduces the amount of ... Less </span>use<span> of fossil fuels means lowering greenhouse gas emissions (CO</span>2<span> and ... </span>One<span> of the main </span>disadvantages<span> is the difficulty in the management of </span>nuclear<span> waste. </span>
If you're referring to streams/rivers of water that run independently of another source in the ocean these are referred to as "currents" and can be very powerful depending on their location.
