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An experienced mountaineer decides to climb Mount Everest, taking the same route in the same season and with similar materials and equipment used in a fatal 1924 expedition Which of the following is the scientific purpose of such a climb?

A. To measure the oxygen levels at high elevation

B. To assess why the earlier expedition failed

C. To show that modem technology makes climbing safer

D. To identify routes that can be explored in future climbs

Answer Explanation:

The experienced mountain climber is replicating the conditions of the past expedition to understand why that earlier attempt was unsuccessful.

Therefore, the Correct Answer is B.

More Questions on TEAS 7 Science

  • Q #1: Which of the following contains a human's hereditary information?

    A. chromatin

    B. Histones

    C. ATP

    D. Plasmids

    Answer Explanation

    Rationale

    Chromatin refers to a complex of DNA and proteins in human cells. This material is packaged by histones to make up the chromosomes. The chromosomes then contain genetic information that is heritable.

  • Q #2: A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?

    A. 3' STOGUTCGCU

    B. 5' AGCTAGCGT S

    C. 3' SUCGAUCICA

    D. 3' TCGATCGCA 5'

    Answer Explanation

    The complementary strand of DNA is formed by pairing complementary bases. In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Additionally, RNA uses uracil (U) instead of thymine.

    Given the sequence 5' AGCTAGCGT 3', the complementary strand would read:

    3' TCGATCGCA 5'

  • Q #3: Which of the following characteristics of water helps explain why coastal areas experience less dramatic temperature changes during the day?

    A. Water has a high specific heat capacity

    B. Water is a versatile solvent

    C. Water forms covalent bonds with other water molecules

    D. Water's adhesive properties prevent evaporation

    Answer Explanation

    Water has a high specific heat capacity, which means it can absorb and store a large amount of heat energy without significantly changing in temperature. This helps moderate the temperature fluctuations of the air near the coast, as water can store heat during the day and release it at night, or vice versa.