Explain how sound travels from the pinna to the auditory nerve and to the brain. Think about where hearing starts (soundwaves in your environment) and where it ends (nerve impulses in your brain). Be sure to name each part of the ear/auditory system and its function (what it does and how it works) along the way.

is the art and science of cultivating the soil, growing crops and raising livestock. it includes the preparation of plant and animal products for people to use and their distribution to markets.

agriculture provides most of the world’s food and fabrics. cotton, wool, and leather are all agricultural products. agriculture also provides wood for construction and paper products.

these products, as well as the agricultural methods used, may vary from one part of the world to another.