Developed nations, such as the U.S., have the richest biodiversity and are the main sources of endangered animal and plant products despite international bans on trade. The Developing nations are the principal buyers.

Which deficiency is caused by a diet low in protein and calories and produces very thin, shriveled individuals?

Which is not true of desertification?

Synthetic N fertilizer is made from ___________ , while P & K are mined.

Which is not true of energy and farming?

Brittany’s collection of beanie babies was worth $2,003 in 1994. By 1997 it had grown to $2,636. Let f(x)  be the value of the investment in the year, x, where x = 0 represents 1994.  Write a linear equation that models the value of the investment in the year x. 

Divide the polynomial expressions: 

Raising cows on pasture grass rather than grain reduces erosion by 1/2 and nitrogen runoff by 2/3.

Deforestation of rainforest leaves very nutrient poor acidic soil for agriculture and __________ is added to counteract the acidity and help hold nutrients

Which soil horizon is the subsoil with a dense accumulation of materials such as iron, clay, humic compounds, and aluminum?