Answer:
Air speed of bird is
mph
Explanation:
let the speed of the bird in still air be "X"
Speed of the bird when it flies in the direction of flow of wind 
Speed of the bird when it flies in the opposite direction of flow of wind 
The total time taken is equal to
minutes
hours
The distance in miles is equal to
miles

On solving the above equation, we get -

Air speed of bird is
mph
Could you give me more background about said squirrel.
Answer:
B) Prokaryotic DNA is much smaller than eukaryotic DNA.
Explanation:
In biology, one event is correlated with the other event or structure like observed in the DNA. The genetic material of a eukaryote and a prokaryote differ from the other in many ways:
1. The prokaryote possesses only one chromosome which is double-stranded and circular.
2. The eukaryotic organism exhibits more than one chromosome which is not circular.
Since the prokaryotes possess very less amount of DNA then the eukaryotes therefore during DNA replication, the DNA of prokaryote require only one origin of replication from where the replication will start.
Thus, Option-B is correct.
This is not a biology question this is a math question
Answer:
Two of the most important characteristics of seawater are temperature and salinity – together they control its density, which is the major factor governing the vertical movement of ocean waters. The temperature of seawater is fixed at the sea surface by heat exchange with the atmosphere.
Explanation: