If a machine consumes more energy compared to the amount of work it does, then it is considered to have low energy ___________.
Fill in the blank(s) with the appropriate word(s).
efficiency
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Why has tuberculosis become so difficult to treat after being diagnosed?
A. genetic resistance to antibiotics B. many of the infected show no symptoms C. high human population densities D. it resides in parts of the body that make drug delivery difficult
Parallels have often been used to demarcate political boundaries. The 49th parallel north forms a portion of the border between which two countries?
What will be an ideal response?
When sewage is added to a river, one effect is an increase in dissolved oxygen levels
Indicate whether the statement is true or false.
The substance shown below is called cisplatin and is used in the treatment of testicular cancer. [Pt(NH3)2Cl2] Which of the following correctly describes this substance?
A) Both Cl and NH3 are ligands. B) The substance contains six coordinate covalent bonds. C) Pt obeys the 18-electron rule. D) All of the above are correct for this substance.