<span>The Rocky Mountains extend from Alaska to New Mexico </span>
Answer:
a. three directions at ~90°
Explanation:
Galena is known for its presence in all types of rocks (igneous, metamorphic and sedimentary rocks). It is predominantly ore of lead which has a chemical configuration of PbS and lead sulfide. Also, newly severed chunks of galena display excellent cleavage in three directions at ninety degrees.
Hence, in this case, the correct answer is "galena’s cleavage is best described as three directions at ~90°"
Answer: Novaya Zemlya.
Explanation:
Novaya Zemlya is located in an archipelago in the Russian Arctic, consisting of several small islands and two main ones; Séverny Island and Yuzhny Island. A nuclear testing site was established in 1954 that remained active until 1990. It is considered that at least 224 nuclear tests were carried out and the most powerful hydrogen bomb ever launched was tested there; The Tsar Bomb.
Due to these experiments the local fauna, such as the polar bear and the arctic fox, has been affected by radioactivity and its genes have mutated.
I hope this information can help you.
