Which characteristic is shared by both dark matter and baryonic matter?
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1 point
They both have gravity
They both are capable of absorbing light
They both interact with each other
They both have been directly observed by scientists
They both have gravity
The characteristic shared by both dark matter and baryonic matter is that they both have gravity.
The characteristic shared by both dark matter and baryonic matter is that they both have gravity.
To understand this, let's break it down. Gravity is a fundamental force in the universe that causes objects to be attracted to each other. Both dark matter and baryonic matter have mass, and mass is what gives rise to gravity.
Now, let's examine how we know this. Dark matter is a type of matter that does not interact with light or other forms of electromagnetic radiation, making it invisible and difficult to detect directly. However, we can observe its gravitational effects on visible matter, such as stars and galaxies. For example, gravitational lensing is a phenomenon where light from distant objects is bent by the gravitational pull of the dark matter, providing evidence for its existence.
On the other hand, baryonic matter is the ordinary matter that we are familiar with, composed of protons, neutrons, and electrons. We can directly observe baryonic matter through various means, including light and other forms of electromagnetic radiation. Baryonic matter also has a gravitational effect on other matter, just like dark matter.
So, in summary, both dark matter and baryonic matter have the characteristic of gravity, which allows them to exert gravitational forces on other objects.