Salinity is a measure of the total amount of dissolved salts in water.
What is the purpose of the cilia in the respiratory system?
Which of the following is a type of volcano characterized by its gentle slopes and non-explosive eruptions, often producing basaltic lava flows?
What is the term for the event where the Moon passes directly between the Sun and Earth, casting a shadow on Earth?
What is the primary greenhouse gas responsible for trapping heat in the Earth's atmosphere?
Which organ is responsible for detoxifying harmful substances in the blood?
What is the name for a large, bowl-shaped depression in the Earth's surface, often caused by the impact of a meteorite?
What is the name for the process by which water from the surface of the Earth enters the atmosphere as water vapor?
Which famous comet, with a period of about 76 years, was last seen in 1986 and won't return until 2061?
What is the term for the large oceanic waves caused by underwater earthquakes or volcanic eruptions?
What is the name of the spacecraft that successfully landed the rover "Zhurong" on Mars, making China the second country to land and operate a rover on the Red Planet?