MDBT42Q,2v04 run a scan every second and save wanted resault

OK , I will try it
why it said that it's recommand to use physical pull up resistors?

and about the SD card ,

1. if I power it using the MDBT42Q (3.3V) meaning the the data ill also work on 3.3V (this is what I know - is this ture? am I correct?
   
2. if the above is true . will you still recomand to use the pullups?
   
3. I found in the SD datasheet , that the operation is 3.3V\10uA - do you know if this really the value of the Amper? can I use this to calculate the neeeded battery?
   
   

Thanks ,