Subsistence agriculture is when people grow their own food instead of buying it from a store. Imagine if you had a big garden in your backyard where you could grow all the fruits and vegetables you needed to eat. That is subsistence agriculture!
Some people who live in places where it is hard to buy food grow their own crops to make sure they have enough to eat. They plant seeds in the ground, water them and then wait until the plants grow and produce fruits or vegetables. They might also have animals like chickens or cows to provide eggs or milk.
People who practice subsistence agriculture usually don't have a lot of extra food to sell or trade. They rely on what they grow to feed their family and sometimes their neighbors. This type of farming is different from commercial farming where farmers grow crops to sell in large quantities.
Subsistence farming is very important in many parts of the world, especially in remote areas where people can't easily access grocery stores or markets. By growing their own food, people are able to have a reliable source of nutrition and ensure that they have enough to eat.