The concept of Peak Oil was first developed in the 1950's by the geologist M. King Hubert.
The correct answer is letter A. Biosphere is not directly studied in one of the main branches of Earth/Space science. This is a branch of science that focuses on living organisms that are living in different populations or communities all over Earth. The other three choices directly study these branches of Sciences.
Answer:
they were military soldiers so, the first one.
Explanation:
Samurai were the hereditary military nobility and officer caste of medieval and early-modern Japan from the late 12th century to their abolition in 1876. They were the well-paid retainers of the daimyo. They had high prestige and special privileges such as wearing two swords
High levels of dissolved oxygen