Match the following. 1. a positively charged ion; an atom which has lost an electron
___cation
2. a negatively charged ion; an atom which has gained an electron
___anion
3. the compound formed by the ionic bonding of a cation and anion
___salt
4. a measure of the hydrogen ion concentration in a solution
pH

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

What is the approximate time of death of the body temperature is 29.4 degrees celsius