When would a partial lunar eclipse be difficult to see?

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline. which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

What is the similarities and differences between bacteria and eukaryote?

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion