Background: Ecologically, the expansion of drainage systems has had tremendous negative effects. Hundreds of thousands of wetland species experienced significant population declines as their habitat was increasingly fragmented and destroyed. Although market hunting within the Central Flyway was a contributing factor in the decline of many waterfowl species' numbers in the early decades of the twentieth century, loss of breeding habitat to agricultural expansion is certainly the most significant. Early maps of midwestern states depict many lakes and marshes that are either nonexistent or significantly reduced in area today. Channelization, a related process of concentrating and facilitating the flow of water from agricultural areas, also contributed to this degradation.

Situation: 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.

Question: Which village had more swamps near it?
Answer: Hill

Situation: 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.

Question: Which village had no swamps near it?
Answer: Timber

Situation: 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.

Question: Which village experienced a decline in waterfowl species?
Answer: Timber

Situation: 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.

Question: Which village experienced no decline in waterfowl species?
Answer: Hill

Situation: 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.

Question: Which village drained more swamps situated in their vicinity?
Answer: Timber

Situation: 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.

Question: Which village drained fewer swamps situated in their vicinity?
Answer: Hill

Situation: 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.

Question: Which village converted more swampland into farmland?
Answer: Timber

Situation: 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.

Question: Which village converted less swampland into farmland?
Answer: Hill

Situation: 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.

Question: Which village took a more protective approach towards the environment?
Answer: Hill

Situation: 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.

Question: Which village took a less protective approach towards the environment?
Answer: Timber