The role of DNA is to storegenetic information. Thegenetic information is storedin the chemical structure of...DNA is short for deoxyribonucleic acid. DNA is found in the nucleus of the cell.
A solstice can be two things, the summer solstice and the winter solstice. it's when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days. however, an eclipse is when the earth, moon and sun align together blocking the sun's light which is why it's called an eclipse because it means hiding/blocking. :)