Most of the Blackland Prairie ecoregion of Texas has been converted to farmland and ranches. Between crop harvests, some farmers grow a type of plant called a cover crop, while other farmers leave the fields bare. How do these practices affect the soil of the Blackland Prairie?

What precautions should you take to prevent injuries when dealing with heavy loads?

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.