What president is President Obama similar to?

Which soil horizon, also known as the zone of accumulation, is enriched in clay, iron oxides, silica, carbonate, and other materials?

Which part of each sentence is a dependent clause? the boys didn’t think dani could win the race even though she was on the school track team. trisha went down to the farmer’s market so she could get some apples. after he was injured by a stray ball, alex was sent to the nurse’s office. though he hated math, chris tried to do the equations.

Lori attended a lecture about the sun, and the presenter had placed this image on the wall. which layer of the sun could this image be referring to?