The core reason the fewer people have traveled to the bottom of the ocean than to the moon is clearly mentioned in the lines:

The pressure is enormous, averaging between 200 to 600 times greater than at the surface-enough to crush submarines.

If pressure is so much high it can crush the submarines then how can people go to the bottom of the ocean?

Answer is D
_________________

So surprised that I am the first reply here.

I know that this passage is so easy for most of you, but I am still incorrect in question 1, my choices between D and E, but finally I chose E.

Can anyone help me explain why D in question 1?

Thanks in advance!

Notice the efforts that have been proliferated for space travel in comparison to deep ocean realm.

There exists 200 to 600 times the pressure in deep ocean than the pressure on the surface level—enough to crush a submarine.

This indication means, to me, that further exploration of the deep ocean realm rests on the capabilities of scientists to create a device that can withstand the pressure of the deep ocean and on if the earth has the resources needed to undergo such an experiment.

Which makes deep exploration a bit more intriguing. —> (Opinion) I could be feeling the mimosa from brunch.

Posted from my mobile device

Question 1. It can be inferred from the passage that fewer people have traveled to the bottom of the ocean than to the moon primarily because of which factor?
Analysis: The passage States that the reason behind the explorers not going on frequent exploration of sea is the lack of sunlight, unequally cold temperature, and water pressure dangerous enough to crush submarines.
Among all 3, water pressure is the lethal factor, which is stopping explorers to limit their underwater travelling.

A. Distance (Vast Distance is covered in space exploration too)(Incorrect)
B. Temperature(unstable temperature is present in space too)(Incorrect)
C. Cost(Cost was never a determining factor in passage)(Incorrect)
D. Water pressure (Correct)
E. Scientific interest(not discussed)(Incorrect)

Answer is D

Question 2. The author mentions tube worms in order to
Analysis: Tube worm example is shown to discuss the non existent vaccum in their body which allows them to survive the environment under water.

A. provide an example of a creature that lives near hydrothermal vents.(Partly true, but not the only reason)(Incorrect)
B. support the claim that deep-sea organisms have made adaptations to their environment.(Correct)
C. describe an organism with large eyes and a keen sense of smell.(Nope, body structure is not a considerable factor in passage)(Incorrect)
D. show how deep-sea organisms cope with extremely cold water conditions.(Tube worm lives near hot water source) (Incorrect)
E. explain why most sea creatures are unable to live at great depths.(The majority of population below terrestrial land consist of tube worm)(Incorrect)

Answer is B

Qiestion 3. According to the passage, marine ""snow"" comes from
Analysis: According to the passage, Snow refers to the "dead plant and animal matter and wastes that have fallen from the surface waters over millions of years." Which is collected as sediments on Sea bed.

A. hydrothermal vents.(They are not the fallen bodies discussed) (Incorrect)
B. toxic waste and pollution.(Not pollution but organisms) (Incorrect)
C. bioluminescent fish.(Not the sole reason for 'snow' collection at seabed) (Incorrect)
D. sulfur-loving bacteria.(Nope, living organisms)
E. organic material from surface waters.(Yes, plants and animals are organic materials fallen on seabed as snow according to the passage)

Answer is E

Posted from my mobile device