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
Answer:
Brainliest pls
Explanation:
The OPEC oil embargo was an event where the 12 countries that made up OPEC stopped selling oil to the United States. The embargo sent gas prices through the roof. Between 1973-1974, prices more than quadrupled. The embargo contributed to stagflation.
The Organization of the Petroleum Exporting Countries (OPEC) then took over, ruling the oil markets and oil prices in the years that followed. However, with the discovery of shale oil in the U.S. and advances in drilling techniques, the U.S. has since re-emerged as a top energy producer.
1. Mount Mayon- Albay
2. Taal Volcano - Batangas
3. Mount Kanlaon - Negros Oriental
4. Mount Bulusan - Sorsogon
5. Mount Makaturing- Lanao del Sur
6a. Musuan Volcano - Bukidnon
6b. Mount Ragang- Lanao del Sur
7a. Didicas Volcano - Cagayan
7b. Hibok-Hibok- Camiguin
8. Smith Volcano - Cagayan
9a. Babuyan Claro - Cagayan
9b. Mount Banahaw- Quezon
10a. Dequey- Batanes
10b. Mount Parker- Cotabato
