Hepa filters can efficiently remove microbes from the air (Option a is correct).
<h3>What are Hepa filters?</h3>
Hepa filters, i.e., high-efficiency particulate air filters, are used to separate microorganisms from the air.
These filters (Hepa filters) eliminate over 99% of microorganisms such as bacteria, dust and pollen particles having a size higher than 0.3µm.
In conclusion, Hepa filters can efficiently remove microbes from the air (Option a is correct).
Learn more about Hepa filters here:
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1. Bigger and toxic molecules are prevented from entering the cell
2. It’s protects the cell from swelling up due to osmosis
Bad
1. Sometimes density variations cause abnormal changes
2.it’s only good for living cells
If the membrane of a cell were no longer selectively permeable then "The cell would die as it would not be able to regulate which substances could enter and leave", since a selectively permeable membrane allows both things to enter and leave for the cell's survival.
Answer:
The correct answer is option A. He could collect a large amount of data for a low cost.
Explanation:
A descriptive investigation is a method of the research or investigation where it describes only. The descriptive investigation should carry out the accurate, factual phenomena in a systematic way without influence any causal relationship.
the descriptive investigation does not tell about the reason and method of the phenomena that took place. All three options except option A are false statements in terms of descriptive investigative.
Thus, the correct answer is option A. He could collect a large amount of data for a low cost.
