After 1434, the Following Discovery Accelerated European Contacts with the African

question 56

Multiple Choice

After 1434, the following discovery accelerated European contacts with the African west coast:

• A) The adverse currents and prevailing winds along the west coast of Africa that impeded the return journey were overcome by sailing across the Atlantic to the Americas, thence to Europe in what is now known as the triangle trade.
• B) The adverse currents and prevailing winds along the west coast of Africa that impeded the return journey were overcome by sailing toward the Atlantic islands such as the Canaries, Madeira, and Azores.
• C) The new merchant ships were equipped for both rowing and sailing, using slaves being transported for sale as rowers, keeping them fit as well as expediting the journey.
• D) The Portuguese learned new navigation techniques that allowed them to round the southern tip of Africa and sail across the Indian Ocean.

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Definitions:

Nucleotides

Nucleotides are the basic building blocks of nucleic acids, such as DNA and RNA, consisting of a nitrogenous base, a sugar molecule, and one or more phosphate groups.

Enantiomers

Molecules that are mirror images of each other but cannot be superimposed, having different physical and chemical properties.

Geometric Isomers

Molecules with the same formula and sequence of bonded atoms, but differing in the three-dimensional orientations of their atoms in space.

Structural Isomers

Molecules with the same molecular formula but different arrangements of atoms, resulting in different properties.