RUBBER TREE EXAM QUESTIONS

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RUBBER TREE EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -12 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Latex harvesting - tapping

Answer:

Young tree (5 yrs.) Incisions are made along latex vessels, under bark.The sap is collected in buckets

Question 2: Uses of Bamboo

Answer:

Has over 1000 uses, including paper, furniture, construction, baskets, pipes, carpets, food, medicine, etc

Question 3: Natural rubber uses

Answer:

Tires and tubes Many household uses Automobile parts Balloons, hoses, belts, matting Gloves - medical uses Condoms - protecting people's lives from HIV

Rubber bands, pencil erasers (thus name) Textile applications Allergies - Guayule latex

Question 4: Rubber plant tree

Answer:

Origin: Amazon, rainforest, Americas

Tall tree: 100 ft

White latex is in vessels in the bark, by phloem - spiral Requires rainy climate, no frost

Question 5: Alternatives to rubber tree

Answer:

Other natural plant sources of rubber include the

GUAYULE PLANT

Superb source of natural rubber for latex gloves and other rubber products.Grows well in hot, arid regions - dry deserts.Also used as biofuel.Question 6: Bamboo: an alternative source of paper and wood

Answer:

Bamboo is an alternative source for paper - better ecologically Grows fast in poor soils, no pesticides, no bleaching.

Bamboo: for wood flooring

Question 7: History of rubber

Answer:

Ancient mesoamerican civilizations: Olmecs, harvested rubber from a different latex-producing tree.Mayans, Aztecs and others, made a rubber ball for the ritualized ball game

Question 8: Bamboo

Answer:

a tree-like member of the grass family Poaceae; Native to East Asia, but some species found in other continents Amazingly rapid rate of growth (up to 4" per day!) Some species grow up to 100 ft.Mass flowering - every 65-120 yrs.

Food for pandas

Question 9: Rubber in Congo, under Belgium

Answer:

Under control of King Leopold II of Belgium, the Congo was exploited for its rubber Belgian colonists forced the natives to extract rubber - in brutal conditions, 1890's-1908 Death and mutilations were used as punishment More than 10 million people died during this brutal regime

Question 10: History of the Rubber Tree

Answer:

Grew only in Amazon forest, so plantations in the region became very rich:

Manaus and Belem in Brazil: great rubber boom cities.

British, finally grew some seeds in the Kew Royal Botanic Gardens - Ceylon

Question 11: Chico Mendes

Answer:

Brazilian union leader of the rubber tappers and environmentalist, in Brazil during the 1980s At first I thought I was fighting to save rubber trees, then I thought I was fighting to save the Amazon rainforest. Now I realize I am fighting for humanity.-Chico Mendes Fought to preserve Amazon forest, and the rights of indigenous peoples Assassinated by a rancher in 1988

Question 12: Charles Goodyear and vulcanization

Answer:

Invented in 1839 by American inventor Goodyear Patented in 1844 by British scientist and engineer Thomas Hancock Rubber is heated with phosphate, peroxide or bisphenol, to give it more elasticity and resistance - also prevented decay.Carbon black used for tires