Can you answer 66 and 67 and 67 please I’ll venmo 2 cause I’m broke just drop your venmo

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

How does human environment effect the biosphere