How do the abiotic factors in the desert affect biotic factors in the desert? A. The permanently frozen subsoil in the desert does not allow for plants with deep roots to grow.
B. Many plants in the desert have developed a waxy coat to prevent the plants from drying out.
C. The plants in the desert produce seeds in cones to protect the seeds from freezing cold.
D. Plants cannot grow in the desert at all because the temperature is too high for plants to survive.

c. 4.54 x 10–12 j happens to be correct

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.