2. Supporters of the decision to remove endangered-species protections for the Yellowstone grizzly bear argue there are so many Yellowstone grizzlies that conflicts with humans have increased, as well as attacks on livestock. What do critics of this decision argue?
A. They argue the decision should expand to other parts of the country where grizzly bears live and search for food near human populations.
B. They argue the decision will lead to other types of animals becoming at risk of dying out.
C. They argue the decision will cause grizzly bears to stop reproducing which will lead to their populations shrinking.
D. They argue the decision is premature because grizzlies have a slow reproduction rate and could be in danger due to hunting and other threats.

The “big dig” the “big dig” (the central artery/tunnel project) has been complex and challenging. located in boston, massachusetts, this tunnel is eight lanes wide and three-and-a-half miles long. what is most amazing about this tunnel is that it is constructed under a major highway and skyscrapers located in boston’s financial district. construction crews used “clamshell excavators” during this dig. these machines carved narrow trenches, and then a special substance was pumped into the trench to keep the dirt from caving in. finally, steel beams were lowered into the trench and concrete was pumped in. one problem that engineers faced while constructing the tunnel is the fact that the soil beneath boston is extremely loose and soggy. engineers solved this dilemma by freezing the soil and pumping very cold water into pipes beneath the city. to strengthen the soil even further, a special type of glue was injected into the ground to with the consolidation of the soil. 23 which phrase best defines the word excavator as used in the passage? a. a device used to measure underground temperatures b. a device used to level uneven surfaces c. a device used to move heavy objects d. a device used to dig holes