Converting Uranium to thorium by decresing the number of protons from 92 to 90 and decreasing the number of neutrons from146 to 144 is an example of Alpha Decay.
Alpha Decay is a radioactive decay in which an atomic nucleus emits an alpha particle and <span>nucleus left behind has its atomic number reduced by 2 and its mass number reduced by 4. See attached picture for the complete reaction.</span>
Answer:
C. a dog buries a bone in the backyard
Explanation:
A dog burying a bone in the backyard is not an observation in terms of scientific methods.
Observation is the process of acquiring data about a phenomenon under study.
Most times, senses are used in making observations. Our sense of taste, hearing, sight etc. comes handy when making observation.
Also, we can use some specialized equipment to make observations.
- A dog burying a bone in the backyard is not an observation. None of the senses nor instruments are used to gather any relevant information.
The series of processes by which carbon compounds are interconverted in the environment, chiefly involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels..