4. how do you determine if the nanoparticles are alive? (
a. thaw the ice and see if they are mobile
b. thaw the ice and see if they grow and reproduce
c. keep it frozen and run tests to determine more about their chemical composition
d. thaw the ice and expose them to an electrical charge and look for response

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Which process of living things produces water that enters the water cycle