Answer:
Mars
Explanation:
Mars is the planet with features that are really similar to the earth. As a matter of fact, Mars and the earth are referred to as "twin planets".
Mars and Earth are believed to have historically had even more similar attributes, however, that of mars was lost due to changes in the solar system.
The two planets are mostly similar because of their relatively similar size and proximity to the sun.
Answer:
A scientific problem is something you don't understand but you can do an experiment to help you understand. Scientific problems are usually based on observation of scientific phenomena. Here is some advice to help you identify a scientific problem you can address by designing your own experiment.
Explanation:
Example of a scientific problem are Clean Drinking Water.
Answer:
0.220 mol He
Explanation:
Hello,
Based on the ideal gas equation of state:
Best regards.
The digestive and circulatory system
Electrons group themselves in pairs in their energy levels. To calculate the number of electrons allowed in any energy level, find the square of the number representing the energy level and multiply it by two. Using this formula, atoms can have two electrons in their first energy level, eight in the second, and eighteen in their third. The quantity of electrons at each level grows as the number of the energy level increases.
