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Question 17 (1 point) There are possibly thousands of important plants in the rain forest. Scientists most of them. have not stu

Question 17 (1 point)
There are possibly thousands of important plants in the rain forest. Scientists
most of them.
have not studied
did not study
Question 18 (1 point)
Where
Dr. Acosta
his medical degree?
has
gotten
did ... get

Question 17 (1 point) There are possibly thousands of important plants in the rain forest. Scientists most of them. have not studied did not study Question 18 (1 point) Where Dr. Acosta his medical degree? has gotten did ... get

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UE. eliminating soft drinks from their diets
LOVE & Hip Hop Miami - Season 4 E
Questions are
Question 18 of 190
FINAL - Science
Questions 18 and 19 are based on the following passage.
The orderly pattern of the atoms in a crystal influences many properties

Inorganic Chemistry

P Block - Group 14 Solutions

UE. eliminating soft drinks from their diets LOVE & Hip Hop Miami - Season 4 E Questions are Question 18 of 190 FINAL - Science Questions 18 and 19 are based on the following passage. The orderly pattern of the atoms in a crystal influences many properties apart from its external appearance. One of these properties is cleavage. Cleavage refers to the ability of a crystal to split in a certain direction along its surface. The direction of the cleavage is always parallel to a possible crystal face. Cleavage planes are dependent on the atomic structure, and they pass between sheets of atoms in well-defined directions. How easily a mineral cleaves and the effect of the cleavage vary from one mineral to another. A crystal whose cleavage results in exceptionally smooth surfaces is said to show eminent cleavage; other types of cleavages are classified as distinct or poor. All crystalline gemstones undergo cleavage before they can be mounted in a setting. This cutting process may also be easy or difficult. A diamond cleaves easily despite its great hardness and may be cut into many different forms. a According to the passage, what can we conclude about cleavage? A. All crystals demonstrate good cleavage. B. Some crystals with poor cleavage may not be used for gemstones. C. Eminent cleavage is inherent in all crystals of the quartz family. D. Cleavage of diamonds is a random property and differs from stone to stone. E. Cleavage improvement depends on the location of mineral excavation. 1,804 20 DEC 2 áty 5