At what latitude can the noontime sun be observed in the northern part of the sky a. 0°
b. 30°N
c. 60°N
d. 90°N

The deserts of the sahara and australia are associated with

Dna has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. one aspect of dna that allows it to accurately store genetic information is the base pairing from chargaff\'s first rule of the four nucleotide bases. if the c content of a dna molecule is 22%, what are the percentages of the remaining bases?

When analyzing tree rings, what do scientists assume a thin ring indicates?