(sorry I can only answer no. 1)
the climate is the weather over a long period of time (could be days, weeks, months, or years) while weather is only how the day has been on one day (e.g. sunny)
A vector has a size and a direction. The size is called the magnitude of the vector.
C. The membrane is inside the cell wall. The cell wall surrounds the membrane.
The frequency of sound waves goes up, so the pitch goes up as well. More frequent=higher pitched
Thermal Imaging. Hope it helps.