FREE AZSCI Earth and Space Science Questions and Answers
What causes the seasons on Earth?
The tilt of the Earth's axis relative to its orbit around the Sun causes the seasons. As the Earth orbits, different parts of the planet receive varying amounts of sunlight, leading to seasonal changes.
Which of the following best describes the Earth's inner core?
The Earth's inner core is primarily composed of solid iron and nickel. It is the innermost layer of the Earth and is extremely hot, but the pressure prevents it from melting.
Which of the following best explains the phenomenon of a lunar eclipse?
A lunar eclipse occurs when the Earth passes directly between the Sun and the Moon, casting its shadow on the Moon. This results in the Moon appearing darkened or reddish.
What is the primary source of energy for the Earth's weather systems?
The Sun is the primary source of energy for Earth's weather systems. Solar energy heats the Earth's surface and atmosphere, driving wind patterns, evaporation, and weather systems like storms and precipitation.
Which layer of the Earth's atmosphere contains the ozone layer?
The ozone layer, which protects life on Earth by absorbing harmful ultraviolet radiation from the Sun, is located in the stratosphere. This layer lies just above the troposphere and extends to about 50 kilometers above the Earth's surface.