Question

grammar
5 hydrothermal vents—fissures on the seabed floor that discharge geothermally heated water—exist because the earth is geologically active and has large amounts of water both on its surface and within its crust. relative to the majority of the deep sea, the areas around hydrothermal vents are biologically more ______ complex communities fueled by the chemicals dissolved in the vent fluids. (a) productive, often hosting (b) productive; often hosting (c) productive, they often host (d) productive, and often hosting
6 jazz musician miles dewey davis iii was known for creating a unique sound through the use of non-traditional instruments such as the french horn. he joined ella fitzgerald and duke ellington as ______ of the most renowned jazz performers in the united states during the mid-twentieth century. (a) many (b) some (c) one (d) more
stretch: temperate rainforest is a scientifically recognized habitat, one that is scarcer globally than tropical rainforest. according to ecologists, a
ainforest\ is defined as land that receives more than 55 inches of precipitation each year, with rain spread across summer and winter months. temperate rainforest is cool but not ______ temperatures average 60 degrees or lower. (a) cold in july (b) cold, in july (c) cold. in july (d) cold in july,

Explanation:

Question 5

To solve this, we analyze the structure of the sentence. The part "often hosting complex communities..." is a participial phrase modifying "productive". We need to check the punctuation and the structure. Option A uses a comma, and "often hosting..." is a non - restrictive participial phrase that fits well. Option B uses a semicolon, but the second part is not an independent clause. Option C creates a comma - splice as "they often host..." is an independent clause and can't be joined with just a comma. Option D has an incorrect "and" as "hosting" is a non - finite verb and doesn't form a proper compound structure with "productive".

The structure "one of the + superlative + plural noun" is a common English construction. Here we need to fill in the blank before "of the most renowned jazz performers". The correct phrase is "one of the most...", so we need the word "one". "Many" would be "many of the most..." which is incorrect in this context. "Some" doesn't fit the "one of the..." structure. "More" is used for comparison (e.g., more than) and doesn't fit here.

We need to choose the correct punctuation and phrase structure. The sentence is "Temperate rainforest is cool but not ______ temperatures average 60 degrees or lower." We are looking at the description of the temperature in July. The correct structure is "cold in July" as a phrase. Option A: "cold in July" fits as it is a phrase describing the temperature condition. Option B: the comma after "cold" is unnecessary. Option C: the period after "cold" is incorrect as the sentence is not complete. Option D: the comma at the end is incorrect.

Answer:

A. productive, often hosting

Question 6