Please help it an agriculture question Which of the following statistics about Idaho describes the state's population density?

Idaho has 19.8 people per square mile.
Boise is the state capital and the largest city in Idaho.
Idaho's population is growing at a rate of 0.89% per year.
Idaho is the 14th largest state in the country.

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer