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.
Answer:
- Generated electricity is used by millions of people.
- Floods are controlled, reducing damage to farmland.
Explanation:
The dam likewise improved route over the Nile, profiting the travel industry and fishing businesses. Water from the dam is utilized to take care of 12 force turbines, which gives half of Egypt's capacity requests. The repository likewise assists gracefully with watering during dry spells.
Layers of the soil are called horizons. Here are the horizons:
- Humus
- Topsoil
- Subsoil
- Fragmented rock
- Bedrock
Once a soil has developed, it forms layers called horizons. Beneath a surface layer of a plant remains, the topsoil is rich in decomposed plants and animal matter. The subsoil is mainly mineral particles, with much less organic material. The fragmented rock/bedrock is primarily small stones, and beneath it lies all bedrock.
Hope this answer helps you!
Answer:
Fish, shrimp prawns, crabs, shellfish and snails.
Others can be tigers, sharks, turtles, and many more.
