Write 2-paragraph answers to the following questions:
explain why you support or oppose greatly increased use of (a) genetically modified food, and (b) organic polyculture.
what is the difference between the national parks system and the national wilderness system?
if we fail to protect a much larger percentage of the world's remaining old-growth forests and tropical rain forests, describe three harmful effects that this failure is likely to have on any children and grandchildren you might have.

Which of the following statements best characterizes changes to agriculture in the united states since 1900? a. increased mechanization has reduced the need for labor.b. increased mechanization has increased the need for water, thereby increasing the need for labor.increased mechanization has increased the use of land, thereby increasing the need for labor.d. increased mechanization has increased food production, thereby increasing the need for labor. select the best answer from the choices provided.

Ozone in the upper atmosphere has been depleted by a. sulfur dioxide. b. chlorofluorocarbons. c. carbon dioxide. d. oxygen.

What can you learn about precipitation levels in south america from this map? brazil is experiencing a drought.it rains more in higher altitudes.peru received the highest level of rain.venezuela got less than 25 cm of rain.