Environmental Science Final

The human population appears to be ____ shaped?

Rate of human population?

What is the proportion of the world’s population that is under 15?

The rates of human fertility are______.

About 1/3 of the world’s population lives in______.

What is the projected population in 2050?

The medium range prediction of the size of the human population is?

Where would you expect to find mangroves?

What does the “O” in HIPPO stand for?

Half of all wood globally is used for?

The fastest growing use for lumber is?

What percent of forest land is protected in some way?

What proportion of the earth’s land surface is in some form of a park?

In the past 30 years, the number of protected parks has _______.

____ is deep, rock-free wind blown soil.

€�Green Revolution” plants________.

The proportion of US soybeans that is genetically modified is_____?

What determines a wetland?

Which factors affect the toxicity of a substance?

On average, how much of the energy present in herbivores is captured by the carnivores that eat them?

What happens to temperature as you go higher in the atmosphere?

What percent of all water in the world is fresh water?

What percentage of fresh water is made from ice and snow?

Which source of water stores most fresh water, has a relatively long recharge rate, and is a renewable source?

_______ is the amount of water withdrawn from source.

_______ is the amount that is not returned or reused.

What percent of water is used for toilets?

What is the major source that uses water?

The element most abundant in the earth is_________.

Which is the element most abundant in the earth’s crust?

How old is life on earth?

How old is the earth?

_______ is a naturally occurring solid with a specific chemical makeup and crystal structure.

________ is a solid aggregate of minerals.

________ loose grains of other rocks consolidated by time and pressure.

How long has there been multi celled organisms?

________ light, malleable substances useful for conducting heat and electricity.

________ are solidified hot, molten magma or lava.

________________ is when you blast mountain with water canons to wash out minerals.

Which metal do we recycle most?

Which saves the most energy when recycled?

What is the #1 source of worldwide commercial energy?

Which term best describes “the social and cultural conditions that affect an individual or a community”?

The world’s richest countries use ____ % of the world’s fossil fuels?

Which fuel has the most proven reserves?

Which sector of the U.S. Economy uses the most energy?

The U.S. is ____% of the world’s population and uses ____ % of the world’s fossil fuels?

What percent of U.S. Oil is imported?

The average citizen of the U.S. uses ____ times as much energy as a citizen in a poor country such as Bhutan, Nepal, or Ethiopia?

Which energy source is least efficient?

Converts solar energy directly to electricity and uses semiconductor materials.

Which fuel has the least proven reserves?

_______ is used to generate electricity.

What proportion of the world’s population lives in cities?

Albedo is a measure of the earth’s_______.