Select all the answers that apply. scientists think past changes in climate have been caused by
a. milankovitch cycles
b. air pollution
c. plate tectonics
d. volcanic activity
e. mountain ranges
f. thermohaline circulation

Arock collection comes from which part of earth?

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little