The natural resources in Ghana,Mali and Songhai contributed most to the growth and power of these empires.
•It brought about the beginning of the trans Saharan Caravan Trade in the 13th and 14th centuries.The gold-salt trade in Africa made these empires very powerful since they controlled the trade routes and taxed traders
•Cities also developed in Ghana,Mali and Songhai because their resources were in high demand and the overland trade routes connected them to west Africa
•The T.S.T brought about the spread of Islam throughout west Africa. The Muslims also sold their commodities (textiles,beads,camels and others) in exchange for gold and salt
The waxy coating on their leaves is being damaged by B) acid rain <span />
Answer:
The following is NOT part of the definition of a mineral: c. can be produced by natural or laboratory processes. Is glacial ice a mineral? d. Yes. Which type of bonds results when two atoms share electrons? d. Covalent
Explanation:
Mineral are composed of specific chemical elements. The are organized and their atomic structure forms crystals. They occur naturally and they are associated with rocks. The reason why they are inorganic is because they do not contain carbon, however, they can be produced by organic processes. Therefore, c. is NOT part of the definition of a mineral. Following the same principles, ice is considered a mineral because it is composed of one single chemical molecule (H2O), it occurs naturally and it contains a well organized crystal structure. The process of sharing two atoms is called covalent bond. In an ionic system, the electron is transferred to another atom so the concept of sharing is limited to the covalent bond.
