If a student wants to study the effect of sunlight on plant growth. In his experiment, 12 plants receive normal amounts of sunlight, but half of them are kept under bright sun lamps all night long. The control group is: the amount of light the plant receives.
<h3>What is control group?</h3>
A control group is a type of experiment carried out using two variables based on this control group can be defined as the process in which experiment is carried on two different variables such as dependent variables and independent variables in which one of the variables is not experimented or tested.
Based on the given scenario if after 6 weeks, the plants heights measured which inturn means that the control group is the amount of light the plant receives.
Therefore if 12 plants receive normal amounts of sunlight, but half of them are kept under bright sun lamps all night long. The control group is: the amount of light the plant receives.
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Answer:
Explanation:
Natural fortifications also helps defend a country. For example the Alps in Italy defends them very well. Rivers can also be a defensive position a country can fall back to. So no, fortifications and defenses arent the only thing. Nature is able to help too.
The Unites States has a higher gross domestic product when compared to other developed countries
Gross domestic product is an economic indicator that represents the value of all goods and services produced by a country during a given period (usually one year) used to measure the wealth that a country generates.
For example, in 2019, the GDP of the United States was about 21.4 trillion dollars, while the GDP of other developed countries such as China was about 14.3 trillion dollars, and Japan had a GDP of about 5 trillion dollars. From the above, it can be United States has a higher gross domestic product.
On the other hand, United States does not have the highest standard of living because countries such as finland have a higher standard of living, still United States has a relative unemployment rate and its economy is based in the gold standard.
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The correct answer is B) The Federal Reserve:
Since the beginning of the crisis in August 2007, central banks have shown a great capacity for reaction. They have also acted both to avoid a systemic banking crisis and to limit the impact on growth. In addition, the US Federal Reserve eased monetary policy by injecting liquidity and, eventually, acting on interest rates.
Banks are traditionally financed by borrowing money in the short term in the interbank market. But the financial crisis that began in 2007 has been characterized by a great mutual distrust among banks, which led to an increase in interbank rates. Interbank rates far exceeded the central bank's guide rate. In addition, central banks have intervened massively to inject liquidity, hoping to reduce money market tensions and restore confidence. The monetary policy has also been characterized by an extension of the duration of the loans, an extension of the guarantees and the possibility of obtaining refinancing.
In addition to providing liquidity, in order to reduce the impact of the financial crisis on growth, the Fed has lowered its guideline considerably, which has gone from 6% at the beginning of 2007 to 0.5% at the end of 2008. On the other hand, the ECB has not lowered its guideline type.
A is the answer I believe
