Minerals can be classified based on cleavage or fracture. These two properties refer to the way in which a mineral tends to break. Cleavage is an orderly breakage in well-defined planes. It means that the broken
piece of mineral will have flat and smooth sides. Fracture is a random breakage. If a mineral breaks with
rough, random, uneven surfaces, it is said to have fractured. Because each of your mineral samples have
already been broken from another, larger piece of a mineral, you should be able to tell if it has cleavage or
fractures by looking at its sides. Of your 10 minerals, identify three that experienced cleavage.
Cleavage
Fracture

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Apatient has an open displaced fracture of the second cervical vertebra. this is her fifth visit and the fracture is healing normally. what icd-10-cm code is reported?