Instructions: select the correct answer.
why does a solid change to liquid when heat is added?
a-the spacing between particles decreases.
b-particles lose energy.
c-the spacing between particles increases.
d-the temperature decreases.

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?