How do chemical tags affect whether a gene
gets activated to make a protein, or not?

The chemical compounds of the epigenome are not part of the DNA ... Epigenetic changes can help determine whether genes are turned ... effect the modifications have on gene function, protein production, and human health.

Explanation:

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint