Answer:
The required number is 
Step-by-step explanation:
To find : Write a decimal between 0.0006 and 0.0007. Then write the number in scientific notation ?
Solution :
To get the number between them we find the mid point by adding them and divide it by 2,



So, The decimal between 0.0006 and 0.0007 is 0.00065.
Writing the number into scientific notation,

Therefore, The required number is 