The ability to roll one's tongue (turn up the sides) is controlled by a dominant allele. if two heterozygous parents have a child, what are the chances an offspring will be able to roll their tongues?

Wind energy is plentiful in regions with vast open spaces it is a non polluting renewable resource what could be an economic factor that makes the use of this resource less feasible then non renewable resource even in such regions

Which layer will become saturated first when rain falls?

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates