It also means that you have been that friend's number one best friend out of all of their friends as well, for two months. Red heart: After the yellow heart comes to the red heart â your BFF â if you remain each other's number one best friends for a period of two weeks.
Carbon dioxide is actually a very important greenhouse gas, and an important part of the process that makes Earth so pleasant to live on. The amount being generated, however, started to outstrip the Earth's abilities to handle it in the 20th century.nd CO2 is a greenhouse gas as is oxygen, water vapor and nitrogen. CO2 along with the other trap heat between the earths crust and the atmosphere, not letting it escape. This in turn raises the temperature of the earth.
Carbon is a Group 14 element and is distributed very widely in nature. It is found in abundance in the sun, stars, comets, and atmospheres of most planets.Carbon is present as carbon dioxide in the atmosphere and dissolved in all natural waters.It is a component of rocks as carbonates of calcium (limestone), magnesium, and iron. The atmosphere of Mars is very thin but what there is contains about 95 % CO 2. Coal, petroleum, and natural gas are chiefly hydrocarbons.Carbon is found as carbon dioxide in the atmosphere of the earth and dissolved in all natural waters. The atmosphere of Mars contains 96% CO 2. It is plentiful in the sun, stars, comets, and the atmospheres of most planets.arbon is present as carbon dioxide in the atmosphere and dissolved in all natural waters. It is a component of rocks as carbonates of calcium (limestone), magnesium, and iron. The atmosphere of Mars is very thin but what there is contains about 95 % CO 2. Coal, petroleum, and natural gas are chiefly hydrocarbons.