The Earth’s core is cooling down very slowly over time. One day, when the core has completely cooled and become solid, it will have a huge impact on the whole planet. Scientists think that when that happens, Earth might be a bit like Mars, with a very thin atmosphere and no more volcanoes or earthquakes. Then it would be very difficult for life to survive – but that won’t be a problem for several billions of years.
Explanation:
Tomando o continente europeu, as três principais unidades de relevo são:
- Alpes
- Cáucaso
- Cárpatos
Os Alpes são a cadeia montanhosa com maior extensão e altitude, sendo encontrada totalmente na Europa, sua extensão é de 1.100 km e atravessa todo o território da Itália, Alemanha, Suíça, Áustria e França, seu monte mais elevado é o Monte Branco, com altura de 4.807 metros.
O Cáucaso se encontra nos países Russia, Geórgia, Armênia e Azerbaijão, localizado entre o mar negro e o mar cáspio.
O Cárpatos está situado na Eslováquia, Ucrânia, Romênia e Polônia.
Answer:
Greenhouse gases, including water vapor, carbon dioxide, and methane, form a small percentage of the overall atmosphere, yet they play an important role, trapping the heat required for life on Earth.
Sorry but I haven’t learned about that yet but I hope you will figure it out
Answer:
Heat output changes very quickly at low flow rates but very gradually at higher flow rates. This trend also holds true at other supply water temperatures. Now take a look at the temperature drop across the fin-tube over the same range of flow rates. First, it’s obvious the temperature drop doesn’t remain constant as flow rate changes.
Explanation: