Ocean sediment core provides a climate record of the past 70 million years.
1880 is the reliable global record which we can say the climate began. Proxies(climate) helps the scientists to determine the climatic patterns even before starting record-keeping.
Some examples of proxies are sub-fossil pollen, lake and ocean sediments, tree rings, and ice cores. Climatic of the time influenced the growth rate of proxies material. It is from proxies where we can recover quantities of particular isotopes from climatic changes.
The combination of proxies can produce temperature reconstruction which is longer the instrumental temperature.
Answer:
Are ups and downs in the level of economic activity
Explanation:
Business cycles is defined as the various ups and downs in the economic activities of a particular nations. These ups and downs are generally measured by the fluctuations in the macro economic variables. These macro economic variables includes:
(i) Gross domestic product (GDP)
(ii) Employment
(iii) Rate of consumption
There are four major phases in the process of business cycle are as follows:
(i) Expansion
(ii) Peak
(iii) Contraction
(iv) Trough
Answer:
c. the exchange of goods and services for goods and services without the use of money
Explanation:
Barter the exchange of goods and services for goods and services without the use of a medium of exchange such as money.
In a barter, money doesn't change hands.
An example of a barter- I want a pair of shoes worth $30. I see someone that has the shoes but wants textbooks worth $30. I have these textbooks. I give him the textbooks and he gives me the shoes.
I hope my answer helps you
Answer: $460 billion, but the effect would be larger if there were an investment accelerator.
Explanation:
If the MPC = 0.75 and there is no investment accelerator or crowding out, then a $115 billion increase in the government expenditures would result in the shift in the aggregate demand curve right by:
= $115 billion ÷ (1 - 0.75)
= $115 billion ÷ 0.25
= $115 billion × 1/0.25
= $115 billion / 0.25
= $460 billion.
Therefore, there'll be a shift in the aggregate demand curve right by $460 billion, but the effect would be larger if there were an investment accelerator
The first ad relies on the Central route to persuasion; the second, on the Peripheral route
.
<u>Explanation:
</u>
Advertising is a payment of the messages sent by those who send them to notify or affect the recipients, as defined by the British Advertising Association.
The central route to convincing takes place when the substance of a message persuades a person. The peripheral way to persuade takes place when a person is convinced by something other than the content of the post.
The peripheral route often occurs if a listener is convinced that there are many points in a text— but there is no ability or incentive to care about each one individually. In other terms, secondary data such as the identity of the source (credibility) or many claims in a single message is shortcut.
