Why are flowers important to plants?

they attract birds and insects to assist in pollination.

they protect the reproductive parts of the flower.

they are ornamental.

they are a food source.

they produce new flowers.

Heterogeneous mixture with larger particles that never settle is

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?

Awhite-blue star is hotter than a red star. select the best answer from the choices provided true or false