Timber village started a channelization process by draining all the swamps near their village. Hill village situated 10 miles to the south, left their swamps untouched. Which village experienced a decline in waterfowl species?
Ans: Timber

Two siblings went to the eye doctor, they needed eyeglasses. As it turned out, Ann had myopia, and Jane had farsightedness. They both bought eyeglasses. Which sister had longer eyeballs?
Ans: Ann

David wants to categorize animals according to the sound waves they can hear. Eventually, he was able to categorize them in three different groups, group A, group B, and group C. He placed the animals that can only hear ifrasound in group A. Then he placed the animals that are only able to hear the same frequency of sound waves as humans do in group B. The last group of animals were able to hear only ultrasound. He placed them in group C. Which group would be able to hear the highest frequency, group A, group B, or group C?
Ans: group C

Bird city had may economic ties with Pine city. Pine city was located in the mountains, and was inhabited by nature lovers and people that protected the environment. Bird city was situated on the banks of a large river flowing into the sea. They relied mostly on conventional agriculture and used fertilizer for their crops. Which city released more livestock waste into the ocean?
Ans: Bird