Which of the following statements is TRUE? a. Energy of band gap does not matter
b. In order for a photon to excite an electron over the energy band gap the energy of the photon must be greater than the energy of the band gap
c. In order for a photon to excite an electron over the energy band gap the energy of the photon must be equal to the energy of the band gap
d. In order for a photon to excite an electron over the energy band gap the energy of the photon must be less than the energy of the band gap

the plateau is likely to turn into a desert do to corrosion.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

they should be similar or the same

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2