Primary industries are those that extract or harvest natural resources, such as agriculture, forestry, fishing, and mining.

Agriculture is the main economic activity in rural areas, as it provides food and other agricultural products for the population.

China is the largest producer of wheat in the world, accounting for about 18% of the global production.

Animal husbandry is the process of raising livestock for food or other products, such as milk, eggs, or wool.

Trawling is a type of commercial fishing that involves dragging a large net through the water to catch fish.

The primary economic activity in forestry is harvesting timber, which is used to produce a variety of products, including lumber, paper, and furniture.

Surface mining, underground mining, and open-pit mining are all types of mining.

Mining is the process of extracting minerals from the earth, typically through digging, drilling, or blasting.

Mining is a primary industry that involves the extraction of non-renewable resources, such as minerals and fossil fuels.

Aquaculture, mariculture, and pisciculture are all terms used to describe the process of raising fish in captivity.

Mariculture is a type of aquaculture that involves raising fish in saltwater.

Mollusculture is the term used to describe the process of raising shellfish in captivity.

Forestry is a type of primary industry that involves the extraction of renewable resources, such as timber and other forest products.

Silviculture is the term used to describe the process of managing and protecting forests.

Surface mining is a type of primary industry that involves the extraction of minerals from the earth's surface.