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0 votes	930 views	2 answers	The moisture content of a sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is updated 11 years ago by Civil Engineer
0 votes	3171 views	1 answer	The pH value of fresh sewage is usually updated 11 years ago by Civil Engineer
0 votes	927 views	2 answers	Sara lives in a large city on the East Coast. Her younger cousin Marlee lives in the Mid-west in a small town with fewer than 1,000 residents. Marlee has visited Sara several times during the past five years. In the same period of time, Sara has visited Marlee only once. updated 11 years ago by Civil Engineer
0 votes	941 views	2 answers	Georgia is older than her cousin Marsha. Marsha's brother Bart is older than Georgia. When Marsha and Bart are visiting with Georgia, all three like to play a game of Monopoly. Marsha wins more often than Georgia does. updated 11 years ago by Civil Engineer
0 votes	1473 views	1 answer	On weekends, Mr. Sanchez spends many hours working in his vegetable and flower gardens. Mrs. Sanchez spends her free time reading and listening to classical music. Both Mr. Sanchez and Mrs. Sanchez like to cook updated 11 years ago by Civil Engineer
0 votes	978 views	2 answers	Ten new television shows appeared during the month of September. Five of the shows were sitcoms, three were hour-long dramas, and two were news-magazine shows. By January, only seven of these new shows were still on the air. Five of the shows that remained were sitcoms. updated 11 years ago by Civil Engineer
0 votes	967 views	2 answers	When they heard news of the hurricane, Maya and Julian decided to change their vacation plans. Instead of traveling to the island beach resort, they booked a room at a fancy new spa in the mountains. Their plans were a bit more expensive, but they'd heard wonderful things about the spa and they were relieved to find availability on such short notice. updated 11 years ago by Civil Engineer
0 votes	924 views	1 answer	Tim's commute never bothered him because there were always seats available on the train and he was able to spend his 40 minutes comfortably reading the newspaper or catching up on paperwork. Ever since the train schedule changed, the train has been extremely crowded, and by the time the doors open at his station, there isn't a seat to be found. updated 11 years ago by Civil Engineer
0 votes	1989 views	2 answers	Erin is twelve years old. For three years, she has been asking her parents for a dog. Her parents have told her that they believe a dog would not be happy in an apartment, but they have given her permission to have a bird. Erin has not yet decided what kind of bird she would like to have. updated 11 years ago by Civil Engineer
0 votes	942 views	3 answers	The Pacific yew is an evergreen tree that grows in the Pacific Northwest. The Pacific yew has a fleshy, poisonous fruit. Recently, taxol, a substance found in the bark of the Pacific yew, was discovered to be a promising new anticancer drug. updated 11 years ago by Civil Engineer