How much of food consumed throughout the world was developed in the Andes?

How much of food consumed throughout the world was developed in the Andes?

Half the foods eaten throughout the world today were developed by farmers in the Andes Mountains (including potatoes, maize, sweet potatoes, squash, all varieties of beans, peanuts, manioc, papayas, strawberries, mulberries and many others).

When was the first digital watch invented?

On April 4, 1972, the Pulsar was finally ready, made in 18-carat gold and sold for $2,100. It had a red light-emitting diode (LED) display. Digital LED watches were very expensive and out of reach to the common consumer until 1975, when Texas Instruments started to mass-produce LED watches inside a plastic case.

How quickly to rats reproduce

Rats multiply so quickly that in 18 months, two rats could have over a million descendants.

What type of creature is a worm?

Invertebrate animals commonly called “worms” include annelids (earthworms), nematodes (roundworms), platyhelminthes (flatworms), marine polychaete worms (bristle worms), marine nemertean worms (“bootlace worms”), marine Chaetognatha (arrow worms), priapulid worms, and insect larvae such as caterpillars, grubs, and …

How long have sharks been in the ocean?

Sharks have swum in the oceans for almost 450 million years. But longevity is only part of the story. That extra few million years of evolution have enabled many shark species to develop some extraordinary abilities as perfect predators.

Who invented the first pay phone?

The first pay phone was invented in 1889 and by 1902, there were over 81,000 pay telephones in the United States. In 1889, the first public coin telephone was installed by inventor William Gray at a bank in Hartford, Conn.

What is the instrument used to measure earthquakes?

Seismometers are instruments that measure motions of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources. Records of seismic waves allow seismologists to map the interior of the Earth, and locate and measure the size of these different sources.

Who ran against Eisenhower in the 1952 election?

The 1950s. People. Adlai Stevenson (1900-1965) ran against Eisenhower for president as the Democratic candidate in both 1952 and 1956.