Answer:
Cool air moves down while hot air rises
Answer:
<em><u>The products of the combustion of hydrocarbons are carbon dioxide and water. Many hydrocarbons are used as fuel because their combustion releases very large amounts of heat energy.</u></em>
Answer:
The mass number of an isotope is the total number of protons and neutrons in an atomic nucleus. If you know that a nucleus has 6 protons and 6 neutrons, then its mass number is 12. If the nucleus has 6 protons and 7 neutrons, then its mass number is 13.
Explanation:
Temperature of the environment, surrounding atoms and size of atom are all factors which affect removal of electron. Increase in temperature increases the probability of removal of electron. But size of the atom plays very important role in removal of electrons. In case of large sized atom, the nuclear attraction of nucleus on valence electrons decreases which eases the removal of electrons. Hope this helps.
Answer:
Most soils have pH values between 3.5 and 10. In higher rainfall areas the natural pH of soils typically ranges from 5 to 7, while in drier areas the range is 6.5 to 9. Soils can be classified according to their pH value: 6.5 to 7.5—neutral
Explanation:
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