What is the main reason that wildfires threaten more and more homes each year? More fires are being started accidentally by people in crowded neighborhoods.
More people are moving to larger cities near the coast.
More towns are expanding into nearby forested areas.
More homes are being built with wooden siding and roofs.

Explain how frequent wildfires can change an ecosystem.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Burgers vector is generally parallel to the dislocation line. a)-true b)-false