ASVAB Paragraph Comprehension Test 2

Question 1

Read the following passage and answer the question:

'The global average temperature has risen approximately 1.2°C above pre-industrial levels. Scientists warn that without significant reductions in greenhouse gas emissions, the planet could warm by 3-4°C by the end of the century, triggering more extreme weather events, rising sea levels, and widespread ecological disruption.'

According to the passage, what could happen if greenhouse gas emissions are not significantly reduced?

Accepted Answer

The planet could warm by 3-4°C by end of century

Answer

The passage directly states that without significant reductions in greenhouse gas emissions, the planet could warm by 3-4°C by the end of the century.

Question 2

Read the following passage and answer the question:

'Photosynthesis is the process by which plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy stored in glucose. This process requires carbon dioxide, water, and sunlight. Oxygen is released as a byproduct. Without photosynthesis, most life on Earth could not exist.'

What does the passage identify as a byproduct of photosynthesis?

Accepted Answer

Oxygen

Answer

The passage explicitly states that 'Oxygen is released as a byproduct' of photosynthesis.

Question 3

Read the following passage and answer the question:

'Coral reefs, often called the rainforests of the sea, support approximately 25% of all marine species despite covering less than 1% of the ocean floor. These ecosystems are under threat from warming ocean temperatures, ocean acidification, and pollution. When water temperatures rise even slightly above normal, corals expel the algae living in their tissues, causing coral bleaching.'

What is the best title for this passage?

Accepted Answer

Coral Reefs: Vital but Threatened Ecosystems

Answer

The passage focuses on coral reefs — describing their importance (supporting 25% of marine species) and the threats they face (warming, acidification, pollution, bleaching). The best title captures both the value and the vulnerability.

Question 4

Read the following passage and answer the question:

'Sonar technology, which stands for Sound Navigation and Ranging, uses sound waves to detect and locate objects underwater. Active sonar emits sound pulses and listens for echoes; passive sonar only listens without emitting signals. Submarines typically use passive sonar to avoid detection while still monitoring their surroundings.'

Why do submarines prefer passive sonar over active sonar?

Accepted Answer

Passive sonar does not emit signals, helping submarines avoid detection

Answer

According to the passage, submarines use passive sonar 'to avoid detection' because passive sonar only listens and does not emit sound signals that could betray the submarine's position.

Question 5

Read the following passage and answer the question:

'The human body's immune system has two main branches: the innate immune system, which provides immediate but non-specific defense against pathogens, and the adaptive immune system, which develops a targeted response over days and provides long-lasting immunity. Vaccines work by training the adaptive immune system to recognize specific pathogens without causing the disease itself.'

According to the passage, how do vaccines work?

Accepted Answer

They train the adaptive immune system to recognize pathogens without causing disease

Answer

The passage explicitly states that vaccines work 'by training the adaptive immune system to recognize specific pathogens without causing the disease itself.'

ASVAB - Armed Services Vocational Aptitude Battery Practice Test

ASVAB - Armed Services Vocational Aptitude Battery Practice Test

ASVAB Paragraph Comprehension Test 2