Question

A system is commonly defined as a group of interacting units or elements that have a common purpose. We call a system as a closed one, when it
(a) has no proper order
(b) exchanges materials with surroundings
(c) does not exchange materials with surroundings
(d) is constantly changing in composition

• A. (a) and (d)
• B. (b) only
• C. (a) and (c)
• D. (b) and (d)

Answer 1

The correct option is B (b) only

Option: (b)