Question

why is there more erosion than normal in newtok? higher air temperatures cause arctic ice to melt, which puts water in the river that is newtok. more less

Explanation:

When Arctic ice melts due to higher air temperatures, it adds more water to the river. More water in the river increases the erosive power of the river (since more water means more force and volume to carry out erosion processes like abrasion, hydraulic action etc.). And Newtok is likely near this river (implied by the context of the question about erosion in Newtok related to the river).

Answer:

more; near (assuming the second dropdown has an option like 'near' as the context implies the river's proximity to Newtok is relevant for the erosion impact)