Question

in the last 30 years, what fraction of the earth’s natural resources have been consumed?
1/3
1/10
1/20
1/5
question 8
what are bfrs
boronted fan reducer
brominated flame retardants
beryllium financial resolution
beryl furnace resuscitators

Explanation:

There is no widely - known data indicating that a specific fraction like those given has been consumed of Earth's natural resources in the last 30 years. However, for BFRs, they are well - known as Brominated Flame Retardants in environmental and chemical contexts.

Answer:

For the first question: No reliable answer among the options.
For the second question: B. Brominated Flame Retardants