4. Students are studying how the positions of Earth and the Sun effect changes on Earth. After
four seasons have passed on Earth, which has happened?
a. Earth has completed one rotation around the Moon
b. Earth has completed one revolution around the Sun.
C. The sun has completed one revolution around the Earth
d. The moon has completed one revolution around Farth
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Ответ:
1.Los átomos son partículas indivisibles.
2.Es una partícula más pequeña que no se puede ver a través del microscopio, por lo que esta borrosidad y esfera. Por ejemplo, cuando los rayos del sol se reflejan a través de la casa en la mañana, las partículas de polvo se pueden ver en ella llamadas átomo.
3.Es capaz de partículas independientes que pueden existir.
4: es una reacción química.
5: también se puede encontrar en un electrón, un protón y un núcleo.
6: también se forman iones llamados aniones y cationes.
Explanation: