Please help !! there are pictures and I need to put words in the boxes next to them that match. These are the words Precambrian

Paleozoic

Mesozoic

Cenozoic

HELP PLEASE 20 points !!

What would be the most likely result if the ph of the stomach were increased to 5

What are some possible short and long term medical concerns for crew members on longer space exploration trips

1. seamount a raised footwall block between normal fault creates this 2. syncline break between rocks where a hanging wall rises relative to a footwall 3. hot spring on rolling hills, this a dip between hills 4. volcanic neck created when a block with hanging walls slips down between normal faults 5. caldera underwater volcano that never reaches above sea level 6. horst natural hot water on earth's surface containing many minerals 7. graben underwater volcano whose top is eroded flat by waves 8. crater less than a mile in diameter; looks like a bowl at the top of a volcano 9. guyot magma that filled the central vent that remains after the volcano has eroded 10. reverse fault over 1 mile in diameter; looks like a bowl over a volcano