Answer:
A prospective cohort study
Explanation:
A prospective cohort study -
It is a longitudinal study which a group of people with certain differences are studied , in order to determine how various factors affect the rate of the outcomes .
This method is adapted for studying various diseases , this method is a long run method , which is done for years to have complete and brief knowledge .
hence , from the question , Cancer study is done on the 3,000 adults of Baltimore , showing the example of a prospective cohort study .
Answer: D) Monopolistic competition
Explanation: Monopolist competition is the competition in the marketing field by selling the products which are different from each other on basis of certain parameters such as brand.
According to the situation mentioned in the question ,presence of 12 airlines for opting are huge amount where airplane is viewed from product point of view and thus, it will create a imperfect competition.
Other options are incorrect because perfect competition is raised by the perfect market of products, monopoly is the situation with no competition and oligopoly is the competition with limited number of seller and their products.Thus, the correct option is option (D).
There aren't any large cities in the Southern Part of the Arabian Peninsula due to the Arabian Desert.
Arabian Peninsula is the largest Peninsula in the world and is made up of Saudi Arabia, Yemen, Bahrain, Qatar, Oman, Kuwait, UAE. It also includes some parts of Iraq and Jordan.
However, in modern times, Saudi Arabia covers more than 60% of the land area.
The area has always been sparsely populated, especially in the south as you go deeper into the Arabian desert.
It is a harsh climate and a difficult terrain, where it is not easy to grow food. Hence, the area is mostly made up of small villages and towns.
Unicorn horse/zebra dragon would be a lizard big foot ape <span />
