Answer:
B.)
Explanation:
An Aquifer is an underground formation containing groundwater
Answer:
389 mL solution
Explanation:
Step 1: Given data
- Concentration of the NaCl solution: 0.900% (m/v)
- Mass of sodium chloride: 3.50 g
- Volume of saline solution: ?
Step 2: Calculate the volume of saline solution
The concentration of the NaCl solution is 0.900% (m/v), that is, there are 0.900 g of NaCl every 100 mL of solution.
3.50 g NaCl × 100 mL solution/0.900 g NaCl = 389 mL solution
Answer: The ph value of the skin plays an essential role in protecting the skin.
Explanation:
An acidic protective layer is crucial for the functioning of the skin's protective barrier. Neutralizes aggressive alkaline substances (eg, aggressive surfactants), inhibits bacterial growth and restores and maintains an optimal acidic environment in which natural flora can develop.
If there is a rise in the ph value of the skin, the nature of the skin may become disturbed. Essential epidermal lipids can no longer be synthesized, so in this case, the skin loses and dries. By breaking its protective function, the skin can become dry, sensitive, or extremely
