An unconformity is(n) a ) layer of sedimentary rock b) gap in the rock record c) intrusion ( my answer) d)layer of rocks with unusual fossil

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.