What happens to the amount of waste in the pond as the ecosystem ages?

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Which hotel do you think is most likely to move ahead in market competition? a. a hotel that provides basic amenitiesb.a hotel that provides luxurious amenitiesc.a hotel that shows understanding of customers' latent needsd.a hotel that gives discounts

What is the function of nucleic acids