Fossil fuels dominate the planet and sooner or later will kill it and the people who live on it. Algae are a group of aquatic organisms capable of photosynthesis. Most algae can grow on their own in various forms. There are seven types of organisms that make up algae. They are grouped by the types of pigments they use for photosynthesis, the formation of their cell walls, the types of carbohydrate compounds they store for energy, and the types of flagella (whip-like structures) which they use to get around. The colors of algae types are due to mixtures of photosynthetic pigments, which are a combination of one or more green-colored chlorophylls as the main pigments. Some algae are familiar to most people, such as algae (kelp or phytoplankton), pond scum, or lake algal blooms. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay There are different types of algae that are useful for us and our planet. Most algae grow through photosynthesis by converting sunlight, CO2, and nutrients, such as nitrogen and phosphorus, into biomass. This is called “autotrophic” growth. Other algae can grow in the dark using sugar or starch, called "heterotrophic" growth, or combine the two growth techniques, called "mixotrophic" growth. ". The majority of algae live in aquatic habitats. They can survive in freshwater lakes or saltwater oceans. They can also withstand a range of temperatures and concentrations of oxygen or carbon dioxide. Algae is able to survive on land and grow on tree trunks, animal fur, snow banks, hot springs and in the soil. Probably the most important contribution of algae to our environment and well-being is the production of oxygen through photosynthesis. They play an important role in many ecosystems, sustaining aquatic food chains, supporting all fisheries in the oceans and inland, and producing about 70 percent of all the air we breathe. Algae helps keep atmospheric carbon dioxide levels stable by storing it in organic materials such as oil deposits and inorganic carbonate rocks. All algae have the ability to produce energy-rich oils and several species of microalgae naturally accumulate high levels of oil in their dry mass. With the recent rise in oil prices and concern over global warming caused by carbon dioxide emissions, biofuels have gained ground. popularity. There are three main types of biofuels; Ethanol, biodiesel and biofuel. Ethanol is used in engines that burn gasoline. Biodiesel is used in engines that burn diesel fuel, such as in large trucks and tractors. Biofuel is used in airplanes. Biofuels are an excellent alternative to fossil fuels. There are many ways to make biofuels, but they typically use chemical reactions, fermentation and heat to break down starches, sugars and other molecules in plants. The remaining products are then refined to produce a fuel that cars can use. Gasoline and diesel are old biofuels..