instruction:
In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.
question:
Question: Someone stranded in the Sahara can potentially save their life with a? Answer: prickly plant's trunk.
answer:
a cactus stem is used for storing water


question:
Question: Shivering is when an animal creates heat by shaking to keep the body what? Answer: agreeable temperature.
answer:
shivering is when an animal creates heat by shaking to keep the body warm


question:
Question: A person wants their yard to be a wonderful ecosystem for local wildlife. They consider doing a few things in order to facilitate this, but ultimately decide that the best way to make a great impact is to? Answer: plant a blue spruce.
answer:

planting trees has a positive impact on an ecosystem