instruction:
Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.
question:
Fact: veins transport nutrients throughout the body
answer:
A creature is able to receive nutriment throughout their limbs due to?


question:
Fact: bees eat pollen
answer:
When we think of bees, we also think of pollen. This is because bees?


question:
Fact: carbon dioxide concentrations in the air have increased over the last decade dramatically
answer:

Which activity would most increase atmospheric CO2?