Drake truman

to set up your fish aquarium, you must first decide where to put your tank. you should place your fish tank on a stable, sturdy piece of furniture, such as a table. pick a spot away from direct sunlight, as direct sunlight can harm some fish. after placing your tank in its chosen spot, place a small layer of pebbles at the bottom of the aquarium. then, put a few underwater plants or other decorations on top of the pebble layer. after adding decorations, fill the tank with water. because the water will make the tank heavy, fill the tank by using a clean pitcher filled with water. that way, you will not have to move your tank after it is full of water. finally, put your new fish into your aquarium.

which of these details does not support or fit into this paragraph’s main idea?
a) fill the tank with water until it reaches about three inches from the top.
b) dogs are delightful pets indeed, but they also require a lot of responsibility.
c) the pebble layer should be about three inches thick and cover the entire bottom.
d) make sure that any decorations you put in the tank are designed for fish aquariums.

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