Anyone have AP world History??

How much of the total food cultivation was actually found in North America?

Anit [1.1K]

Grains, fruits and vegetables were farmed in North America. The cultivation begin there at 5000 bp.

The tropical zones of North America grows oranges, sugar cane, banana and cocoa. Theses crops grow on humid mountains and coastal plains.

The total crops grew were more than $136 billion. This contributed 0.6% of GDP of America.

The total gross Domestic product of America is much high and agriculture crops amount to very small part but still it is one of n important source for economy.

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6 0

3 years ago

A book box can hold 24 books. Mrs. Ames had 8 book boxes. If each box is two-thirds full,how many books does mrs.Ames have un th

PtichkaEL [24]

Answer:

128 individual books. Mrs Ames could pack about 6 full boxes.

Explanation:

To find a third of 24 divide 24 by 3 you'll find that 1/3 of 24 is 8 so 2/3 of 24 is 16. Multiply 8 by 16 to find how many books Mrs. Ames has total. She has 128 individual books. take 128 and divide that by 24 this should give you the number of boxes Mrs. Ames needs if all the boxes were to be packed full which is 5.333 boxes round up to 6 boxes. Wasn't exactly sure what was being asked so I gave both answer to the questions I thought they could've been.

3 0

3 years ago

Read 2 more answers

Cora is a video game designer. She believes that games played using virtual reality headsets will be perceived by students as mo

Yanka [14]

1. A video game that is experienced by wearing virtual reality goggles.

The researcher has control over the factors that are considered independent. Or the independent variable that causes the dependent one. The study predicts that users would find the use of virtual reality headsets to be more problematic in this scenario.

2. The students did not participate in any games.

In order to determine how the primary impacts have changed or to make the result more accurate, control groups are used. The primary focus of this research is on virtual reality gaming, which serves as the independent variable. A control group was used so that the changes could be analyzed.

3. A variable ratio reinforcement plan produces a high reaction in a relatively short amount of time. The individual in this situation does not know when the next reinforcement (video game) will be supplied, thus he is waiting for it. This boosts both the brain's activity and the audience's attention. This is further explained below.

<h3>What is a video game?</h3>

Generally, An electronic game is known as a video game or a computer game if it requires the player to interact with a user interface or input device in order to provide visual feedback. Examples of such devices include a joystick, controller, keyboard, or motion sensing device.

In conclusion, A rapid response may be achieved using a variable ratio reinforcement scheme. The person is waiting for the next reinforcement (video game), but he has no idea when it will be provided. It increases cognitive engagement and focuses.

Read more about video games.

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3 0

2 years ago

A capacity of wind farm is 3 gigawatts (GW). Assuming that the power plant can operate at full capacity for 5,000 hrs/yr, how ma

den301095 [7]

Answer:

1.5x10^10 KWh

Explanation:

Data obtained from the question include:

Power (P) = 3GW

We need to convert 3 gigawatts (GW) to Kilowatts (KW) in order to obtain the desired result. This is illustrated below:

1 GW = 1x10^6 KW

Therefore, 3 GW = 3x10^6 KW

Time (t) = 5000 hrs/yr

Energy (E) =?

Power is simply the amount of energy transferred per unit time. It can be expressed mathematically as:

Power (P) = Energy (E) / Time (t)

P = E/t

Applying the above formula, we can calculate the energy in kWh of electricity that can be produced by the plant in one year. This is illustrated below:

P = E/t

3x10^6 KW = E / 5000 hrs/yr

Cross multiply to express in linear form as shown below:

E = 3x10^6 KW x 5000 hrs/yr

E = 1.5x10^10 KWh

Therefore, 1.5x10^10 KWh of electricity can be produced by the plant in one year.

5 0

3 years ago

Describe three reasons for the relatively high net primary productivity and high trophic efficiencies of natural grasslands

svlad2 [7]

The natural grassland ecosystem is known for its relatively high net primary productivity and high trophic efficiencies compare to other types of ecosystem, many reasons are responsible for this and three of them are listed below:
1. Natural grassland are regionally adapted to survive environmental fluctuations and grazing pressure.
2. The diverse producer base of the natural grassland ecosystem results in a large number of trophic connections. This enhances energy transfer and reduces energy losses.
3. Nutrient cycling in the natural grassland ecosystem is very efficient and this contributes to the overall efficiency of the ecosystem. The recyclers in the ecosystem decompose dead organic matters and release the energy trapped inside them.

6 0

4 years ago