Need will mark ! which features are created by groundwater erosion and deposition? check all that apply. a. stalagmitesb. sinkholesc. rillsd. stalactites e. gullies f. rivers

1: stalagmites

2:Sinkholes

3:stalactites

Explanation

I got the answers to the questions right

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs