Problem: Rob is an environmental scientist. He was doing a study on agroforestry. To test the sustainability of agroforestry he conducted two pilot projects, pilot A and pilot B. In pilot A, he used a land for agrofroestry. In pilot B, he used a land for usual row-cropping. He needed to find the pros and cons of both systems. Would pilot A have less or more soil cover than pilot B?

A: more

Problem: Tim and Allen were two pen pals, Tim lived in Canada, while Allen lived in Australia. they were chatting about the weather and the fact that the two countries are situated in two hemispheres. Which person experiences warmer weather in June, Tim or Allen?

A: Tim

Problem: Roger and Samantha are brother and sister. Both of them perform roughly the same amount of physical activity on a day-to-day basis. Roger, however, eats a lot more food relative to the amount he needs given his activity levels. Samantha, on the other hand, eats the appropriate amount of food given her level of activity. Who is less likely to gain fat?

A: Samantha

Problem: Mary and Ann met after a long time. Mary was 70 and she was Ann's aunt. She had a number of health problems. Ann was 52 and quite healthy. Which woman freed up less time for her hobbies?

A:
Ann