Science

About Carbon Definition Carbon is a naturally abundant, nonmetallic element that occurs in all organic compounds and can be found in all known forms of…

Health Geography Definition Health geography is the study of the distribution, diffusion, determinants, and delivery associated with health and health systems in human populations. It…

Calculating the Circumference of a Circle A circle is a shape with all points the same distance from the center. The distance around a circle…

Fossil Fuel Definition Fossil fuel is a hydrocarbon deposit, such as petroleum, coal, or natural gas, derived from the accumulated remains of ancient plants and…

About Petroleum Definition Petroleum is a thick, flammable, yellow-to-black mixture of gaseous, liquid, and solid hydrocarbons that occurs naturally beneath the Earth’s surface. Primary source…

Sulfur Definition Sulfur is a pale-yellow, brittle nonmetallic element that occurs widely in nature, especially in volcanic deposits, minerals, natural gas, and petroleum. It is…

About Neutron Definition Neutron is an electrically neutral subatomic particle in the baryon family, having a mass of 1.674 × 10-24 grams (1,838 times that…

In general, the surface area is the sum of all the areas of all the shapes that cover the surface of the object. To calculate…

About Proton Definition Proton is a stable subatomic particle in the baryon family having a mass of 1.672 × 10-24 grams (1,836 times that of…

Bronchus Definition Bronchus, also called bronchi is either of the two main branches of the trachea that lead to the lungs, where they divide into…

Ammonium Sulfate Definition Ammonium Sulfate; (NH4)2SO4 is a brownish-gray to white crystalline salt used in fertilizers and water purification. It is an inorganic salt with…

About Ammonia Definition Ammonia (NH3) is a colorless alkaline gas that is lighter than air and has a strong pungent odor. It is used as…