instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Temperature and sky conditions are both used to describe weather.
answer:
Which two observations are both used to describe weather?


question:
The metallic bond is responsible for the properties of metals.
answer:
What is responsible for the properties of metals?


question:
The term passive transport describes a way that small molecules or ions move across the cell membrane without input of energy by the cell.
answer:

What term describes a way that small molecules or ions move across the cell membrane without input of energy by the cell?