A theodolite works by combining optical plummets (or plumb bobs), a spirit and graduated circles to find vertical and horizontal angles in surveying. An optical plummet ensures the theodolite is place as close to exactly vertical above the survey point.
hope it helps XD
A drainage basin is a very important concept to understand in geography. Drainage basins can be huge or even small depending on the location of it. A drainage basin is an area of land where precipitation which is any kind of water that falls from the clouds gathers and drains into a body of water.
Sandstone would have the greatest porosity.
You should learn oceanology and also geography,biology.
1) by making certain goods and services available
2) by creating advertisements
3) and by knowing what a consumers wants
