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 suggest unlikeliness; it could be a support for life at vents.
• Option B: Animals living off microbes shows life exists, not unlikeliness.
• Option C: Releasing heavy metals and making water acidic creates harsh conditions, making life unlikely.
• Option D: Plants not surviving (needing sun) doesn't directly relate to the unlikeliness of life at vents (as vents have non - plant life forms).

To find the main idea of paragraph two on page 25, we analyze the options:

• Option A: If the paragraph is about hydrothermal vent life, it's not about most life needing sunlight.
• Option B: Just explaining hydrogen sulfide energy conversion is too narrow if the paragraph is about vent life.
• Option C: "Many obstacles" is not the focus if the paragraph explains how life survives without sun.
• Option D: Hydrothermal vent life surviving without sunlight fits the context of vent - related life (since vents are dark and life there has unique survival methods).

Answer:

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

Question 2