Answer:
territory, place, region and landscape
Explanation:
The main categories of geographic analysis basic concepts are :
<u>Territory</u> :
The meaning of 'territory' is a delimited space or region. These delimitation occurs across the borders which is either defined by the nature or defined by man.
<u>Place</u> :
It is mainly used by the people who prefers to build the comprehensive conception of Geography. It is defined as a certain area or land that are understood by the human reason. It is a perceived space.
<u>Region</u> :
It is defined as the space or an area which are divided according to specific criterion. It is the normal human elaboration or idea to better understand some certain area.
<u>Landscape</u> :
It is defined as the external configuration of a space. It is the spatial phenomena and manifestation which are apprehended by a human through the senses.
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.
Sounds like natural disasters.