D. Mental Map
because: a mental map is how you perceive your area
Except the cybercommunities or technology like things that you cant PHYSICALLY see
The rate of natural increase refers to the difference between the number of live births and the number of deaths occurring in a year, divided by the mid-year population of that year, multiplied by a factor (usually 1,000). It is equal to the difference between the crude birth rate and the crude death rate.
Answer:
The question can be best explained in the light of the world hydrological cycle.
Explanation:
- This is a process of the hydrological cycle were the waterfalls in the form of rains and later on gets absorbed or evaporates from the ground or natural vegetation. This falling water may also get collected as lakes and other water bodies.
- When it rains in the neighbour the water the falls on the ground is in filtered through the pore of the soil and percolates deep down to form aquifers and groundwater table.
- This water body acts as a reservoir and in the end, meets with the water of the ocean and sea through the subsurface flow.
Answer:
Transport of sediments causes them to become rounder as their irregular edges are removed both by abrasion and corrosion. Beach sand becomes highly rounded due to its endless rolling and bouncing in the surf.