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Uses of fossil fuels:
Bituminous- used as old house coal
Anthracite- domestic fuel
Peat- for electrical energy
Lignite- for electricity
Bituminous house coal is mined all over the world.
However, Columbian coal is considered to be the best house coal available for domestic use.

Flightless birds are birds that through evolution lost the ability to fly.
The smallest flightless bird is the Inaccessible Island rail (length 12.5 cm, weight 34.7 g).
The largest (both heaviest and tallest) flightless bird, which is also the largest living bird, is the ostrich (2.7 m, 156 kg).

H₂SO₄ is Sulfuric acid.

SO₂ is Sulfur dioxide.

K₂SO₄ is Potassium sulfate.

Na₂SO₄ is Sodium sulfate.

Sulfate is the spelling recommended by IUPAC, but sulphate is used in British English.

Sodium nitrate is the chemical compound with the formula NaNO3. This alkali metal nitrate salt is also known as Chile saltpeter to distinguish it from ordinary saltpeter, potassium nitrate.

Table sugar is pure sucrose derived from sugar beet or sugar cane.
Sucrose is a disaccharide consisting of -> glucose and -> fructose.
It is produced by green plants in the process of photosynthesis.
Sucrose has a monoclinic crystal structure and is quite soluble in water.

Aqua regia (Royal water in Latin) is a very strong acid. It is made by mixing one part concentrated nitric acid and three parts concentrated hydrochloric acid. The acid was named by alchemists because it can dissolve the noble metals gold and platinum. Tantalum, iridium .

Glucose is a simple sugar with the molecular formula C6H12O6. Glucose is the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, using energy from sunlight

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a ‘periodic’ way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

The inferior vena cava (or caudal vena cava in some animals) travels up alongside the abdominal aorta with blood from the lower part of the body. It is the largest vein in the human body.

The superior vena cava (or cranial vena cava in animals) is above the heart, and forms from a convergence of the left and right brachiocephalic veins, which contain blood from the head and the arms.

The largest blood vessel in the human body is the aorta, which is located to the left of the heart. It is an artery which contains muscular walls capable of pumping blood containing oxygen away from the heart and directs its flow toward various tissues.

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