Elements in the ___ group can be used as catalyst

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

9. the history of life on earth is recorded in

Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino