Based on what I have learned, the four geographic features that influence local weather is:
1. Solar Distance
2. Latitudinal Location
3. Air Pressure
4. Water Presence
This is 100% correct!
Mark me brainliest, please!
Answer: FEATHERS!!!
Explanation: BOAS, HEAD DRESSES, FLUFFY DRESSESSSSS
The variable is the group that was given caffine, because thats what the doctors manipulated. They possibly altered the natural memory of the participants by giving them caffine. A more specific variable could be how much caffine each participant is given and what time are they given it.
Not 100% sure but it might be D.