You might recycle plastic, metal, paper, and glass to conserve natural resources. What does it mean to conserve energy? A. It is increased.
B. It is decreased.
C. It is not created or destroyed.
D. It is used for several purposes

B: It is decreased

Explanation:
To conserve energy you would use less because it causes you to run out or have less of the energy you had

2positives of biotechnology: 1. plants have become more resistant to viruses and other communicable pests.2. with the of biotechnology, we have been able to produce better tasting fruits as well as vegetables.2 negatives of biotechnology: 1. biotechnology poses a number of environmental threats. genetically modifies crops often infect monarch butterflies and other insect species.2. viruses could combine with crops.

Yes it would be a physical change.