Sink holes may eventually for to join a. wide valleys b. zone of aeration c. dripstones d. aquifer

[fw.02]diana is studying four surface features of florida. she classifies the surface features and places them in different columns of a chart as shown below. surface features column 1 column 2 hot springs sinkholes caverns geysers which of these titles best represents column 1 of diana's chart? formed by freezing groundwater o formed by heating groundwater o formed by evaporation of groundwater o formed by chemical action of groundwater

What type of aid does nigeria receive? short term, tied, voluntary, bilateral, multilateral or long-term?

Which layer surrounds the center of the earth? a: crust b: core c: mantle