What are biofuels, and what are their impacts on food production?

What will be an ideal response?


Biofuels are made from ethanol and oils derived from agricultural crops. Although they have been decreasing the need for fossil fuels while still providing energy resources, because they are based on agricultural crops, growing crops for the purpose of fuel takes land and resources away from growing food for consumption.

Environmental & Atmospheric Sciences

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The total fertility rate is

A. the sum of the world's birth rates B. the average number of children a woman will bear in her lifetime C. the total population of women D. the total value of all crops grown

Environmental & Atmospheric Sciences

By measuring the amount of salt in modern rivers and knowing the salinity of the ocean, Joly

was able to calculate the age of Earth to within 1 million years. Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Discuss the origin of the early Earth’s hydrosphere. What will be an ideal response?

Environmental & Atmospheric Sciences

Which condition is not important when precipitating new mineral crystals from dissolved sediments?

A) element composition B) pressure C) temperature D) duration the sediments are in solution

Environmental & Atmospheric Sciences