Ok so I just got a 93% on the IA3 test and this question was on it so here are all the answers
Answer:
The Midwestern U.S mainly has a "humid continental climate"
Explanation:
A "humid continental climate" has 4 seasons and large temperature changes between seasons. It typically has warm to hot (sometimes humid) summers and cold (sometimes very cold in the northern areas) winters.
A. at the same time that Earth formed
Explanation:
Geologists think the earth's continents began to form about the same time the earth was formed.
Most of the rocks on the continental crust are about the oldest that been used to date the age of our planet.
- Oceanic plates are relatively very young as they are formed at spreading centers and destroyed at convergent margins.
- Continental masses have very high absolute ages.
- The oldest rock on earth such as the Kabala Gneiss have been dated to be about 3 billion years.
- Other rocks have yielded ages close to the formation of the earth.
- We can conclude that the continents began to form immediately after the earth was formed.
learn more:
Radiometric dating brainly.com/question/7022607
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According to the Demographic transition model the development of a country is directly connected to the population growth or decline.
Explanation:
There are five stages of the Demographic transition model:
- High stationary
- Early expanding
- Late expending
- Low stationary
- Declining
All of these five stages of demographic transition correspond to a certain degree of development. The high stationary stage has high birthrates and high death rates, being typical for the least developed nations. The early expending stage is typical for the developing countries, where the living conditions start to improve, so the birthrates are high, while the death rates decrease. The late expanding stage corresponds to the societies that are industrialized, where the living conditions have improved significantly, birthrates are high, death rates have decreased significantly.
The low stationary stage is typical for a developed society, where the people have high living standard and commit more to their careers, the birthrates are decreasing, while the death rates are low. The declining stage is typical for the post industrial nations, where the birthrates are very low, and the population is aging, the birthrates are very low, as well as the death rates.
Learn more about birthrates and death rates relation brainly.com/question/12798636
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Answer:
- increased levels of human-produced carbon dioxide have enhanced the greenhouse effect
- volcanoes are the largest source of greenhouse gases
Explanation:
The greenhouse effect is cause by the presence of greenhouse gases in the atmosphere, such as the carbon dioxide and methane. These gases have the ability to trap the heat into the Earth's atmosphere in much greater percentage, resulting in warming up of the atmosphere, thus the global climate as well. The biggest source of these gases are the volcanoes, being responsible for pretty much all of the greenhouse gases in the atmosphere for most of the geological history of the Earth. Despite still being number one, the volcanoes get assisted by the human activity in the past two centuries when it comes to greenhouse emissions into the atmosphere. By using the fossil fuels to produce energy, which means burning them, the humans have constantly been increasing their contribution in the amount of greenhouse gases released into the atmosphere. If that trend continues with this tempo, we might experience more dramatic climate change in the near future which can have been consequences.
