Which are accurate statements about dark matter? Select the two correct answers.(1 point)
Responses
New data could cause scientists to change their hypotheses about dark matter.
New data could cause scientists to change their hypotheses about dark matter.
Scientists thoroughly understand what dark matter is and what it does.
Scientists thoroughly understand what dark matter is and what it does.
Scientists are not convinced that dark matter exists.
Scientists are not convinced that dark matter exists.
Scientists have hypotheses about dark matter but need more data to test their ideas.
New data could cause scientists to change their hypotheses about dark matter.
Scientists have hypotheses about dark matter but need more data to test their ideas.
The accurate statements about dark matter are:
1. New data could cause scientists to change their hypotheses about dark matter.
2. Scientists have hypotheses about dark matter but need more data to test their ideas.
The accurate statements about dark matter are:
1. New data could cause scientists to change their hypotheses about dark matter.
2. Scientists have hypotheses about dark matter but need more data to test their ideas.
Explanation:
Dark matter is a mysterious substance that cannot be directly observed because it does not emit, absorb, or reflect light. Scientists, therefore, rely on indirect evidence and observations to understand its properties and behavior. As a result, our understanding of dark matter is based on various hypotheses and theories.
The first accurate statement acknowledges the fact that new data or observations can challenge existing hypotheses about dark matter. As scientific research progresses and new evidence is gathered, scientists are open to revising their ideas and refining our understanding of dark matter.
The second accurate statement highlights that scientists currently have hypotheses about dark matter but require additional data to further validate or test these hypotheses. Scientists actively conduct experiments, observations, and theoretical research to collect more evidence and gain a deeper understanding of dark matter.
On the other hand, the two incorrect statements are:
1. Scientists thoroughly understand what dark matter is and what it does. - This is incorrect because dark matter remains an enigma in astrophysics, and scientists are still working to uncover its true nature and properties.
2. Scientists are not convinced that dark matter exists. - This is also incorrect. The existence of dark matter is supported by multiple lines of evidence, such as gravitational effects on visible matter, galaxy rotations, and the distribution of matter in the universe. While there may be ongoing debates and discussions about specific aspects of dark matter, the general consensus among scientists is that it exists based on the available evidence.
Which characteristic is shared by both dark matter and baryonic matter?(1 point)
Responses
They both are capable of absorbing light.
They both are capable of absorbing light.
They both interact with each other.
They both interact with each other.
They both have gravity.
They both have gravity.
They both have been directly observed by scientists.
The characteristic shared by both dark matter and baryonic matter is that they both have gravity.
i need one of those
The characteristic shared by both dark matter and baryonic matter is that they both have gravity.
Select the correct answer from the list.(2 points)
Dark matter
absorb light,
emit radiation, and
been observed directly.
The correct answer is: Dark matter has not been observed directly.
Dark matter
does
absorb light,
does not
emit radiation, and
has not
been observed directly.