1. Why are heavy metals in soil toxic wastes? 2. Why is methane in Arctic ice and in the oceans potentially a problem?
3. What is the scientific word that describes methane-eating bacteria and where are these bacteria found?
4.How do the methane-eating bacteria clean up toxic waste and reduce air pollution?
5. How do the bacteria make fuel that people can use"
6. How have scientists considered using the bacteria to keep methane from entering the atmosphere?

pl help​

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?

Sickle cell amelia is a condition condition where the red blood cells are deformed which is affected by sickle cell amenia