1. lava cooled over several years it forms fertile soil good for growing of some crops like cotton
2. volcanic features are good tourists attractions brings in foreign currency
3. precious stones like diamond and copper are found at volacanic sites
4. water heated at volcanic sites supply homes and industries saving alot of money ethermal energy
goo
Answer:
The Richter Magnitude unit.
Explanation:
The ritcher magnitude scale measures the size of an earth quake. It is a logarithmic representation. For uniformity, consistence of measurements and interpretation of outcomes, this unit is callibrated to represent the log of the largest amplitude on a seismograph.
Answer:
The correct options are: a. the number of additional neutrons of an isotope is too large; d. the number of additional neutrons of an isotope is too small
Explanation:
The chemical elements that have the same number of protons in the nucleus but different number of neutrons are known as isotopes. Isotopes can be stable or unstable.
The isotope having an unstable nucleus, due to the presence of additional neutrons in the nucleus of the atom, is known as a radioisotope.
Also, chemical elements that have atomic number greater than 83 have unstable nuclei and thus they are called radioisotopes.
