Janelle made a hypothesis about the uneven temperatures inside her house during winter. She believes that 50% of the heating ducts are blocked, and she plans to investigate. If she wants to prove her hypothesis using scientific processes, what should she do next?

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.

The answer is nitrogen-containing bases