Answer: create oxygen as a by-product
Answer:
Most Vikings were farmers. They grew crops such as barley, oats and rye and kept cattle, goats, sheep, pigs, chickens and horses. In most parts of Scandinavia, people lived in timber houses, but in places where wood was scarce they built with turf or stone instead.
Explanation:
Geography. geography is further divided into various sub branches are human geography, physical geography and environmental geography
Today; people go to store or to the market
People farmed or fished
Fishing and farming
