Which action describes chemical weathering A. Water carving out a limestone cave
B. Water cutting downward to deepen a river channel
C. Water freezing and thawing to widen cracks in rock
D. Water depositing beach sand
(Note: This is from Earth Science)

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons