Human. they are the only ones with mammary glands, hair, and four limbs
Evolution is how we came to be as human beings ranging from rats, apes etc. This has helped us increase our survival skills and communication (ever since the beginning)
1the atmosphere<span> also protects living </span>things<span> on Earth from the sun's harmful ultraviolet radiation. 2</span>tmosphere filters out these dangerous rays. 3The atmosphere<span> also helps to sustain life of Earth. .4blocks harmful electromagnetic 5.provide oxgen</span>
Answer:
Beryllium's atomic number is 4
Explanation:
<u>Reason</u>
- Beryllium has 4 protons, 4 neutrons, and 4 electrons.
- This makes it a nuetral atom meaning that it contains an equal amount of protons and electrons
- This means that beryllium has a atomic number of 4
Water is an abiotic factor