Explanation:
Fueron identificados por un estudio de un grupo de investigadores en Israel y su análisis indica que el Homosapiens ya vivía fuera de África hace 185.000 años, unos 80.000 años antes de lo que se pensaba.
Answer:
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.
Explanation:
Answer:
A rock is a collection of minerals. In a cooling lava, mineral crystals do not have time to form and are very small. The chemical composition will be the same as if the magma cooled slowly. Existing rocks may be heated enough so that the molecules are released from their structure and can move around.
Explanation:
There are many fish in the world.
but it’s probably not that hard tbh.
