Design techniques and materials that reduce the negative environmental impact of a structure are referred to as
A. green design
B. engineering technologies
c. modern safety devices
D. composite materials

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.