Because if we're simultaneously moving/manipulating two different variables it can be very hard to determine why one variable is changing and why the other is changing. While this can be done with more complicated experimental designs, it usually is the case that scientists will only manipulate one variable and not two different ones.
Atoms combine to form C, molecules !
The correct characteristics of the given objects are as follows:
A: Jupiter - electromagnet (The electromagnetic waves around Jupiter are much stronger around two of its moons)
B: Refrigerator magnet - permanent magnet (The magnets that we affix to our refrigerator are permanent magnets)
C: Mars - Not magnetic ( Mars has no inner dynamo to create a major global magnetic field.)
Red blood cells carry oxygen from your lungs to your other organs. If you have anemia, your organs might receive less oxygen. When your brain gets less oxygen than usual, you might experience headaches.
With repeated bouts of acute pancreatitis, damage to the pancreas can occur and lead to chronic pancreatitis. Scar tissue may form in the pancreas, causing loss of function. A poorly functioning pancreas can cause digestion problems and diabetes
Brainliest pls
I'm pretty sure that the answer is C
