Why does radiation decrease over time? A. As each normal atom decays into a radioactive atom, there are less
normal atoms left to decay.
B. Radioactive particles have a similar charge and as time goes on they
repel each other away.
C. Radiation occurs randomly and as more atoms decay there are less left
to spontaneously decay.
D. Radiation is derived from the concentration of radioactive atoms and the
concentration decreases as radioactive particles are emitted.

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle

24 points and brainliest to anyone who can answer under 10 minutes with best ! the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.

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