Problem: Two brothers liked natural sciences. Ben decided to study Ecology, while his brother Dan decided to study Geography. They studied a lot and became very good at these subjects. Which brother studied more nutrients and certain elements?

A: Ben

Problem: Two teams of scientists were in Antarctica to study the weather. Camp Alpha was located in East Antarctica, while camp Omega was situated in West Antarctica. Which camp experienced colder weather?

A: Alpha

Problem: Beijing recently significantly increased the amount of cars on the roads there through mandatory price cuts for all motor vehicles. In Montreal, the number of cars on the roads has decreased drastically recently through public transportation initiatives and public advertising campaigns encouraging biking and walking. Which area will produce rain with lower pH?

A: Beijing

Problem: Bob is an astrophysicist. He was pondering about the beginning of our universe. He pinpointed the time when the universe just began to exist. He labeled it as point A. To compare it with present situation of the universe he labeled the present time as point B. In which time the redshift was smaller, point A or point B?

A:
point A