What limits the effectiveness of environmental lawsuits? 

A)  the difficulty of finding a defendant 
B)  the lack of recovery of attorneys' fees by public-interest law firms 
C)  short length of time for court proceedings 
D)  lawyers often fight for environmental law cases

In which ecosystem is a pyramid of biomass most likely to be distorted? 

A)  coniferous forest 
B)  prairie 
C)  ocean 
D)  tropical rainforest