Problem: John was pondering about what makes a chemical reaction faster or slower. To find the answer he did two tests, test A and test B. In test A he warmed up the reactants, but in test B he cooled down the reactants. To see a practical example of these tests he conducted two more tests, test C and test D. In test C he kept a food item in the refrigerator, but in test D he kept the same food item on the table top. Would particles of reactants in test A have lower or higher energy than particles in test B?

A: higher

Problem: Greg is studying the environmental impact of agriculture. He noticed that in his own state a lake near agricultural lands has been declared as a dead zone. For his study Greg labeled this zone as zone A. Then he found near a national park in his state a lake is not declared as a dead zone. To further his study he labeled this zone as zone B. Would zone B see less or more organisms than zone A?

A: more

Problem: Two neighboring towns used different approaches to agriculture. Big town used pesticides and fertilizers, while Small town applied permaculture principles and organic farming methods. Which town had less growth of water plants because of fertilizer?

A: Small

Problem: Two farmers both had ten cattle each. Bill decided to use inbreeding as a method to breed his cattle, but James didn't because he knew about the consequences. Two years later Bill had 12 sick cattle and James had 30 healthy cattle. Which farmer lost more cows as a consequence of inbreeding?

A:
Bill