The dead zone in the Gulf of Mexico is primarily the result of
A) nonpoint sources of pollutants.
B) point sources of pollutants.
C) a natural cycle related to cold ocean currents.
D) industrial pollution by oil refineries in the New Orleans region.
Question 2
Small subsistence farms in developing nations
A) had a sustainable use of the environment when populations were smaller than now.
B) have mostly depleted the natural environment, making farming no longer possible.
C) can support the developing populations at up to 10 times their current population size.
D) have polluted rivers and streams and destroyed surrounding forests.
Variation in climatic conditions result in geographic variation in the distribution of biome types a
As a result of sharing its environment with humans, this macaque had the opportunity to steal an ast
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
A whistle stop used to find top dead center. Remove the spark plug and install the whistle stop, ...
Food Sources of Carbohydrates You need to eat at least 130 grams of carbohydrates daily
Kidney beans, steak, and iron-fortified bread and cereal are good sources of iron