<em>1. sólido, líquido, gas, plasma</em>
<em>2. volumen, solubilidad, presión de vapor, color o conductividad eléctrica.</em>
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<em>cómo ha sido su día? :)</em>
Natural gas made due to pressure and under buried layers of rock over millions of years ago
1,000 years
In many parts of the world, trees can provide a climate history for hundreds of years, with some extending back 1,000 years or more.
