Which valences have the greatest tendency to form ions
choose all that apply:
+1
-1
+2
-2
+3
-3
+4
-4

Study the image of this rock. which characteristic best supports its formation from sedimentary processes? it has many layers. it is coarse-grained. its grain shape is round. its texture is non-banded.

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.