Answer:
the 2nd and 4th
Explanation:
they contain more than one molecule due to them being different elements
Answer:
dreams have been formed through the process of erosion
Explanation:
because it looks like little water streams cutting through the rock so it must have been eroded
Answer:
The correct option is D. Drug-resistant populations of microbes arise when exposure to drugs selectively kills sensitive cells, allowing overgrowth of resistant cells.
Explanation:
Drug- resistance can be described as a mechanism through which an organism can overcome the effect of a drug.
Usually, exposure of a drug again and again to a population of microbes will make the microbes resistant to that drug. The cells of the microbes undergo some change to overcome the effect of that particular drug.
A population of drug-resistant microbes might occur when the sensitive microbes get killed by the drug and resistant strains remain alive.
How does weight effect the distance a paper airplane will fly?