English

Fish is an animal food rich in nutrients, animal protein sources are widely consumed by the community, easy to obtain, and cheap. Fish contains many organic and inorganic elements, which are useful for humans. But fish also quickly experience the process of decay after being caught and died. After the fish die, there are changes both biologically, physically, and chemically. ...

The moon revolves around the earth once every 24 hours 51 minutes, if other factors are ignored then a location on the earth will experience twice tide and low tide twice a day known as pairs of double (semi-diurnal tides), where each cycle highs downs will shift backwards for 51 minutes every day. Because the trajectory moon around the earth ...

Containers can be divided in outline into two kinds depending on their use, namely the outer container or container transport and container for the consumer or sales container. The main purpose of container transport is as a place and also to protect its contents during transportation from factory to consumer. The function of the container for the consumer or the ...

Carbon dioxide in water, can be free of carbon dioxide gas (CO2), the bicarbonate ion (HCO 3), carbonate ion (CO32-) and carbonic acid (H2CO3). This free carbon dioxide needed in photosynthesis by plants berhijau daun.Sedangkan carbonate and bicarbonate salts, especially salts of calcium needed to support the water pH. Fused carbon dioxide with water to form carbonic acid (H2CO3) that ...

Composite paper is paper that is processed together with other packaging materials such as plastics and metals, which aims to improve the brittle force, stiffness and strength of the material. Paper mixed with metal and formed into cans called composite cans, used for citric juice, spice containers (spices), chocolate boxes, dry soups, chemicals and medicines. The packing industry has made ...

Cardboard folding and cardboard is a popular paper type because it is practical and inexpensive. In trading is also called folding carton (FC), and used to package the material results agriculture or other types of goods. The most widely used material for making folding cartons is a cylinder board consisting of several layers, and the center is made of recycled ...