Answer: B
Explanation: Forced is a negative verb, used to create a rebelling and controlling feel to the object it modifies.
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Human activities cause increased nitrogen deposition in a variety of ways, including
<span>burning of both fossil fuels and forests, which releases nitrogen into the atmosphere
fertilizing crops with nitrogen-based fertilizers, which then enter the soil and water
ranching, during which livestock waste releases ammonia into the soil and water
<span>allowing sewage and septic tanks to leach into streams, rivers, and groundwater</span></span>
