Which of the following is a type of landform formed by the erosion of sedimentary rock layers, often resulting in steep cliffs and valleys?

Which of the following is a strong base?

In the context of electricity, what does DC stand for?

What is the name of the mission that successfully landed the rover "Zhurong" on Mars, making China the second country to land and operate a rover on the Red Planet?

Which moon of Neptune is the coldest known object in our solar system, with surface temperatures close to absolute zero?

What is the function of the mucus-producing cells in the respiratory system?

In the human digestive system, where does the majority of nutrient absorption occur?

What is the chemical symbol for iron?

In the periodic table, which group do alkali metals belong to?

Which space telescope is designed to search for exoplanets by measuring the minute dimming of a star's light when a planet passes in front of it?