Nature

Photosynthesis is the process by which plants and some single-celled organisms produce sugars from sunlight and carbon dioxide. These sugars then become the food used in cellular respiration. In...

Plant respiration is the opposite of photosynthesis, which is a biological process performed by green plants that creates oxygen and releases it into the air. During respiration, plants absorb...

When most people think of the air in Earth's atmosphere, they do not think of it as being composed of many different gases. In reality, the atmosphere is made up of many different gases in...

The stomata are tiny pores in leaves that perform many functions for plants. They are a vital part of the process of photosynthesis, through their involvement in gas exchange, and the entrance and...

Photosynthesis allows plants to convert water and carbon dioxide into carbohydrates in the form of sugars and starches. Plants carry a green chemical called chlorophyll that, when combined with...

Plants use a complex chemical reaction called photosynthesis to create food from light energy, carbon dioxide from the atmosphere, and water. Each of these performs a critical portion of the...

Plants use a process called photosynthesis to create food. It requires a combination of water, light energy and carbon dioxide for the chemical reaction to take place. In order for photosynthesis...

Stomata are anatomical features that are located on the underside of the leaves of plants that live on land. These structures, which are the 'pores' of the plant's skin, provide openings for the...

Green plants use photosynthesis to create energy from carbon dioxide and sunlight. This energy, in the form of glucose, is used by the plant to grow and fuel the necessary reproductive activities...

Rainforests are complex ecosystems that play an important role in the balance of the climatic conditions of our planet. Rainforests contribute to the support of local communities as well as to the...

The atmosphere is a complex brew of gases and particulate matter. The main components are nitrogen and oxygen, but other significant gases are water vapor, methane and carbon dioxide. All life on...

Plants make energy through photosynthesis, using sunlight and carbon dioxide from the air. To obtain carbon dioxide, the leaves must open their stomata, microscopic pores that allow the gas to...

Photosynthesis is one of the most vital occurrences in nature as all living organisms require and benefit from its byproduct: the air produced and the food that is harvested. A strong grasp and...

Photosynthesis is the process by which light, water and carbon dioxide is converted into carbohydrates and oxygen. This process can be found in plants, algae and select forms of bacteria. Without...

Breathing is important to organisms because cells require oxygen to move, reproduce and function. Breath also expels carbon dioxide, which is a by-product of cellular processes within the bodies...

The biochemical process of photosynthesis uses energy from sunlight to convert water and carbon dioxide into oxygen and carbohydrates. Carbohydrates are used as building blocks within plants for...

The breathing process begins when a person inhales air through the nose or mouth. The air is ingested into the body and travels to the lungs, filling them up and causing them to expand. When the...

The principle man-made greenhouse gas driving global warming is carbon dioxide. While it is not the most potent of the heat-trapping gasses, much more carbon dioxide is released by human...

A simple definition of greenhouse gases (water vapor, carbon dioxide & methane) is: Essential gases that help determine the Earth’s temperature. Basically, if we had no greenhouse gases, the...

Global warming has been under serious study since the 1970s, and the phenomenon has also been obfuscated or denied since then. However, the recent and obvious environmental effects of global...

The greenhouse effect has been in place for millions of years. When the sun's rays strike the earth, a layer of gas prevents the radiant energy from escaping, which keeps Earth's temperatures...

Global warming is a phenomenon caused by the increased concentration of greenhouse gases being emitted into the atmosphere by humans. These emissions thicken the greenhouse gas layer, which allows...

Global warming, or global climate change, is a phenomenon in which global temperatures are increasing and are outside the range of what most scientists consider normal fluctuations. Global warming...

Global warming is a major international issue with environmental effects that reach into lives of everyone on Earth. For decades, critics successfully denied that human activities had anything to...

The greenhouse effect is a natural phenomenon that has been in place for millions of years. When the sun's rays strike the earth, a layer of gas prevents the radiant energy from escaping, which...

Global warming is a major international issue with wide-ranging effects that reach into everyone's lives. Although critics for decades successfully denied that human activity had anything to do...

The word "tundra" is derived from the Finnish "tunuri," meaning "treeless plain." This barren landscape is characterized by a permafrost, where the land remains...

Global warming refers to the continued increase of the earth's temperature. Some things that have contributed to the earth's increase in temperature have been natural, like volcanic eruptions and...

Biomass is our oldest form of renewable energy. Organic materials, such as plants and animal waste contain this precious resource and it's readily available for use. What makes biomass renewable...