The Only Water on Earth Without Life
Interactive Video
•
Science, Chemistry, Physics
•
11th Grade - University
•
Hard
Wayground Content
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes the Dalal geothermal field in Ethiopia unique compared to other extreme environments?
It has the highest concentration of oxygen.
It is the hottest place on Earth.
It is the only place with no life found despite having water.
It is the only place with no water.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the main finding of the research conducted between 2016 and 2018 in the Dalal geothermal field?
No native life forms were found in the samples.
The pools were less acidic than expected.
They discovered life forms that thrive in high salinity.
They found new species of extremophiles.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are high temperatures in the Dalal pools detrimental to cellular life?
They make the water too alkaline.
They cause cells to freeze.
They lead to the breakdown of essential molecules like proteins and DNA.
They increase the oxygen levels too much.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do chaotropic salts affect living organisms in the Dalal pools?
They enhance the growth of extremophiles.
They stabilize the structure of proteins.
They disrupt hydrogen bonds and prevent essential chemical reactions.
They increase the water's pH level.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a significant challenge for life in the Dalal pools besides high temperature?
Presence of predators.
High levels of oxygen.
Lack of sunlight.
Extreme acidity and salinity.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the combination of high salinity and acidity particularly deadly in the Dalal pools?
It causes rapid evaporation of water.
No known organism can tolerate both conditions simultaneously.
It leads to excessive algae growth.
It creates a lack of nutrients.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the potential significance of studying extreme environments like the Dalal pools?
To increase global temperatures.
To understand the limits of life on Earth and guide the search for extraterrestrial life.
To find new sources of drinking water.
To develop new tourist attractions.
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