Awitness on the stand swears that he saw someone commit a crime must you believe that the testimony is valid when a witness testifies so forcefully

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

One reason scientists are trying to develop fuel sources from corn and sugar is because these sources are renewable fossil fuels are being depleted these crops can be widely grown all of the above

Which is a major genetically modified crop in the united states?