Why are there seasons?

a. earth revolves around the sun
b. the moon revolves around the moon
c. earth axis is tilted
d. earth rotates on its axis

! xd

The plum pudding model of the atom state that ?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?