
PHYSICAL BASIS FOR GAS EXCHANGE A. Physical characteristics of gases 1. Air

Sources of Emissions of Greenhouse Gases

Clean, dry air is composed almost entirely of two gases: 1. oxygen (78%) and

The Supreme Court, on April 2, ruled that greenhouse gases are air

Green Gases 101

air

Percentage of Various Gases in Air

Air consists of 20.9% oxygen, about 78% nitrogen and some trace gases.

Greenhouse Gases

high purity gases (e.g., air, H2, He, N2 and O2) introduced from lecture

Greenhouse Gases, Climate Change, and Energy

gases into the atmosphere causing change in temperature in

Greenhouse gases allow sunlight

some are integrating energy, greenhouse gas, and air quality planning.

Earth's atmosphere is composed of air. Air is a mixture of gases,

High-capacity generators for air and gas purification complete this product

the balance of these gases in the atmosphere must not be upset.

Air-conditioning cartoon 1 - search ID wpr0258

Gases in

Filter Media removes harmful gases from air. ProMark Associates Inc.