Two groups of athletes started new training routines this year. Group A started weight lifting for three months, while Group B, did running exercises. Which group's cardiac muscle contracts faster?
Ans: Group B

Two countries used different fuels as power sources for their activities. Alsacia used fossil fuels, while Lorena devised more advanced energy storage devices, therefore relying on electricity. Which country contributed less to climate change?
Ans: Lorena

Two groups of students went to the forest to explore nature and learn botany. Group D had some people experiencing mild allergy symptoms, and group C had a few folks with severe allergy symptoms, so they had to call the ambulance asap. Which group had more people that could be treated with epinephrine?
Ans: group C

Two brothers owned two adjacent parcels of land. Tom's land was forested, while Bill's was covered with grasslands. Which parcel of land didn't have a rich diversity of large trees?
Ans: Bill's