What is the name of the spacecraft that successfully landed the rover "Perseverance" on Mars in 2021?

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

Which of the following is a measure of the total amount of dissolved salts in water, often used to determine water salinity?

Which part of the human digestive system is responsible for nutrient absorption?

Which element is found in abundance in the Earth's atmosphere?

Which of the following is a vector quantity?

Which type of cloud is thin and wispy, found at high altitudes and composed of ice crystals?

What is the chemical formula for methane?

What type of lens converges light rays to a single point?

Which of the following is a significant factor contributing to the greenhouse effect on Earth?