Question

1. which detail supports the idea that hydrothermal vents are an unlikely place to find life?

a) life depends on hydrogen sulfide.
b) other animals live off the microbes themselves.
c) the vents release heavy metals and make water highly acidic.
d) plants cannot survive because they get their energy from the sun.

1. paragraph two on page 25 is mainly about ______.

a) why most life needs sunlight to survive
b) how hydrogen sulfide is converted into energy
c) the many obstacles to surviving around hydrothermal vents
d) how life around hydrothermal vents survives without sunlight

Explanation:

Question 1

To determine which detail supports hydrothermal vents as an unlikely place for life, we analyze each option:

• Option A: Life depending on hydrogen sulfide doesn't show unlikeliness; it could be a survival factor.
• Option B: Animals living off microbes shows life exists, not unlikeliness.
• Option C: Releasing heavy metals and acidic water creates harsh conditions, making life unlikely.
• Option D: Plants needing sunlight is about plants, not the vent environment's unlikeliness for life in general.

To find the main idea of the paragraph, we evaluate options:

• Option A: Focuses on sunlight for most life, not the paragraph's likely focus on hydrothermal vent life.
• Option B: Converting hydrogen sulfide is a detail, not the main idea.
• Option C: "Many obstacles" is too broad; the paragraph likely explains survival without sunlight.
• Option D: Hydrothermal vent life surviving without sunlight matches the context of vent life (which lacks sunlight).

Answer:

C) The vents release heavy metals and make water highly acidic.

Question 2