What did the results of the experiment show? O A. No pattern was seen in the data. O B. The control group of rats gained more weight. O, C. The experimental group of rats gained more weight. O D. Vitamins had no effect on weight gain.

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand

Apush or pull that moves or changes and object when to objects touch