Answer and Explanation: Earth's climate has changed dramatically many times since the planet was formed 4.5 billion years ago. These changes have been triggered by the changing configuration of continents and oceans, changes in the Sun's intensity, variations in the orbit of Earth, and volcanic eruptions. Hope it helps!
Answer:
Radio telescopes, telescopes detecting infrared radiation, gamma rays, and X-rays and space-based telescopes are essential in modern astronomy.
Competition, Social Hierarchy, and Territorial Imperative
From the listed countries the country that struggles with corruption is Romania - the correct answer is d. Romania
In fact, corruption was one of the major obstacles in Romania's accession to European Union. It is a major problem because it takes up a big part of money- including the subsidies that it receives from the European Union.
