A natural resource that is not replaced by nature in a useful time frame. A. non-renewable resource
B. natural resource
C. renewable resource
D. conservation
(For science)

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.

What are the two major rules associated with polarity