By Julie Kerr Casper
Explores essentially the most very important makes use of of the land: the creation of agriculture. This e-book is helping readers examine that farms and ranches produce even more than meals; yet scientists, farmers, ranchers, and different landowners have not solved conservation difficulties - but.
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Extra resources for Agriculture: The Food We Grow and Animals We Raise
This is done by free-living, nitrogen-fixing bacteria; bacteria living on the roots of plants; and through certain algae and lichens. renewable and Nonrenewable RESOURCES Nitrogen that has been converted to ammonia and nitrates is used directly by plants and is absorbed in their tissues as plant proteins. The nitrogen then passes from plants to herbivores (plant-eating animals) and then to carnivores (meat-eating animals). When plants and animals die, the nitrogen compounds are broken down by decomposing into ammonia.
The Six Critical Resource Cycles: Maintaining a Delicate Balance The six cycles that work together are the water, nitrogen, carbon, phosphorus, oxygen, and energy cycles. The Water Cycle Water is necessary for plant growth, for dissolving and transporting plant nutrients, and for the survival of soil organisms. The water cycle is fundamental to all life on Earth. From a fast-moving stream, to a rainfall, to movement of water through the ground, water is always in motion. The endless movement and recycling of water between the atmosphere, the land’s surface, and underground is called the water cycle, or the hydrologic cycle.
15 16 agriculture Rectangular bales of hay produced from a baler. S. Department of Agriculture; photo by Ken Hammond) concepts of agriculture Sheep are another common farm animal. There are about 800 breeds of domesticated sheep in the world. Some sheep are used to produce milk and cheese. Farmers also harvest their wool to make clothes and blankets. Some farmers raise llamas to protect the sheep. A llama is a member of the camelid family, but it does not have humps like its cousin, the camel. Goats are important farm animals all over the world because they can live in mountainous, dry areas where other farm animals (like cows) cannot survive.