Problem: Ants are one of the most interesting creatures on earth. David wants to study ants for his biology project. He is specifically interested in ant species Acromyrmex heyeri. This semester he studied this ant in Americas. First day when he studied the ants the temperature was 10 degree Centigrade. In the second day of his study the temperature rose to 25 degree Centigrade. In the third day of his study the air humidity was high. But in the fourth day of his study air humidity dropped. David wants to continue his study of this same ant species in Asia next semester. In the first day of his study would David see more or less openings in the nest thatch?

A: less openings

Problem: Sandra liked all creatures but loved to study frogs. Her sister Julie studied more about fish and butterflies. They both loved nature. Which sister learned more about different calls used by different species of frogs?

A: Sandra

Problem: Jill and Bob are working on a construction site together when suddenly two wooden planks fall from three stories up. One plank hits Bob on the head and the other lands directly on Jill's shoulder. Everyone rushes over to them to check if they are ok. All the people are relieved that Bob and Jill appear to be alright, but they urge them both to go visit a doctor to get checked out. Which person is less likely to have trouble talking?

A: Jill

Problem: Peet farm was supplying a nearby city with organic milk. Toad farm was a competitor on the same market, but they didn't produce organic milk, they used conventional agricultural methods. Which farm applied less fertilizer?

A:
Peet