The opportunity for the natural exchange of nutrient-depleted surface water and nutrient-rich deep water is relatively high . a. in the Mediterranean
b. where salinity is equal
c. in warm waters
d. in tropical waters
e. where there is little or no thermocli

chemical weathering

explanation:

i think it is dna, i'm not totally sure but i think it might be.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

answer///multiple alleles;