Instead of using his book to hold down fluttering papers, Sam looks for a paperweight. What type of problem-solving obstacle is this? O A confirmation bias
OB. mental set
OC. functional fixedness
OD.
incorrect assumption

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Natural forces that can alter ecosystems include seasons and climate changes. t or f

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.