Asystem in which both energy and matter are exchanged with the surroundings is known as a(n) a. dynamic system b. open system c. closed system d. flowing system

B. Open system

Explanation:

An open system is the one that exchanges both energy and matter with its surroundings. The term implies that the open system exchange energy with its surroundings according to the temperature gradient and there is an exchange of matter as well.  

For example, all living beings are open systems. Human is also an example of an open system. We derive energy from the food that we get from our surroundings. We can also take the energy of solar radiations. So, humans are capable of exchange of energy and matter with its surroundings.

it’s lava came from an explosive eruption