Ineed an answer asap

which of the following is a physical change?
question 1 options:

a: toasting a marshmallow

b: tearing a piece of paper in half

c: rusting nails

d: a glowing glow stick

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

Which type of fossil does this image depict?