b) desalination uses large amounts of energy.
c) desalination is the main process ised to provide water for crop irrigation
d) all of the above
The statement that is true about desalination is that desalination uses large amounts of energy, i.e., option b.
The process by which the dissolved mineral salts are removed from water is referred to as desalination.
The process that is applied to seawater is the most used one to obtain fresh water for human consumption or agricultural purposes.
It generally uses a large amount of energy as compared to other processes.
Thus, the correct option is b.
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B. Desalination uses large amounts of energy.
a pH 7 solution
a pH 2 solution
a pH 12 solution
lose
gain
Answer;
Complete
Valence is the number of electrons an atom must gain or lose in order to complete its outer energy level or have a stable octet in its outer shell.
Explanation;
-Valency is the number of electrons that an atom requires to gain or lose to form a complete configuration or an octet configuration.
-Atoms tend to lose or get electrons in order to achieve the electronic arrangement of atoms of the noble gases. An ion is an atom or group of atoms having an overall electrical charge. Atoms gain electrons to form cations (positively charged atom), while other lose to form anions (negatively charged atoms).
B. The radical is multiplied by a negative number.
C. 7 is added to the radical term.
D. The x-term inside the radical has a negative coefficient
Option D is correct.
D. The x-term inside the radical has a negative coefficient
The negative coefficient means a negative relation between X and Y variables i.e. increase in X will decrease Y and vice versa. So, that's why the answer to this question is the X term inside the radical has a negative coefficient.