The peppered moth population in a locality has light and dark moth varieties. Which moth variety is likely to survive if the environment of the locality becomes highly polluted? (3 points) a
The dark variety, as they are not visible on the dark tree barks

b
The dark variety, as they are not visible on the light tree barks

c
The light variety, as they are not visible on the dark tree barks

d
The light variety, as they are not visible on the light tree barks

catya your not at all which answer i've seen you do this on another question!

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.