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slega [8]
2 years ago
10

each day, earth receives 10,000 times the total energy used by all human beings. The source of this energy is

Biology
2 answers:
SpyIntel [72]2 years ago
8 0
The sun/ solar energy hope i helped :)
natka813 [3]2 years ago
6 0
Solar energy or the sun
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Which of the following statements about magnesium atoms is NOT correct? 1. All magnesium atoms have the same number of protons.
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Answer:

5. All magnesium atoms have the same number of neutrons

Explanation:

Magnesium (Mg) is a chemical element. Its atomic number (Z) is 12 (number of protons in the nucleus of the Mg atom).

The Magnesium has three stable isotopes: 24Mg, 25Mg and 26Mg. All these isoforms have 12 protons in their atoms (same atomic number), however they  vary in the mass number of the atom (M).

The mass number of the atom (M) is equal to the sum of protons and neutrons in the nucleus.

Based on this information we can know how many neutrons each isotope has

24 Mg = 12 protones + 12 neutrons

25Mg = 12 protones + 13 neutrons

26Mg = 12 protones + 14 neutrons

In this way we conclude that <u>not all magnesium atoms have the same number of neutrons</u>

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You can tell whether people are nearsighted or farsighted by looking at the size of their eyes through their glasses. when a per
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They would be farsighted I would assume

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___________ is the measurement of the height above sea level. Question 3 options: Latitude Longitude Altitude Humidity
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1. There are several ways to transport materials across the cell membrane. Which of these in NOT a transport
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mnactive  \: transport.

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Thanks!!!!

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