Answer: A) 48 Explanation: Take a Look at this series :   23 - 22 =  8 - 4 = 4   33 - 32 = 27 - 9 = 18  43 - 42 = 64 - 16 = 48   53 - 52 = 125 - 25 = 100   63 - 62 = 216 - 36 = 180  73 - 72 = 343 - 49 = 294  83 - 82 = 512 - 64 = 448

Answer: C) energy is stored in chemical bonds is released during cellular respiration Explanation:

Answer: C) 150 m Explanation: Time=Sum of length of the two trainsDifference in speeds 20=(100+x)252  ⇒ X=150m

Answer: B) 9801 Explanation: Clearly, alternatively we add and subtract 10% of a term to obtain the next term of the series.Thus, 10000 + (10% of 10000)= 11000; 11000 - (10% of 11000) = 9900; 9900 + (10% of 9900)  = 10890; 10890 - (10% of 10890) = 9801. 9801 + (10% of 9801)  = 9801+980 = 10781.So, missing term = 10890- (10% of 10890)= 9801.

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Answer: C) Glucose Explanation: Normally, urine contains water and wastes, such as urea, uric acid, creatinine, and some ions. However, some of these substances may be abnormally elevated, which usually indicates that something is wrong with the body.   The following are some of the abnormal constituents of urine:: Albumin Bilirubin Glucose Ketone bodies Blood Microbes White blood cells