In each of the following questions, three out of four

In Egypt, ancient mummies can be found to have their arteries intact due to well-preserved

Which among the following are present in higher amount in hard water?

What is the pH level of pure water?

Which of the following correctly represents the order of increasing wavelength?

A body of mass 4 kg falls freely from a height of 5 m. What is its kinetic energy just before it hits the ground? (Take g = 10m/s²)

Which of the following pair is correct?

I. Opaque – do not allow light to pass through them

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

What is the process of changing a substance directly from solid to gas called ?

Which of the following element is required for the conversion of the solar energy? 

A satellite is orbiting Earth at a height where acceleration due to gravity is 5 m/s². If radius of Earth is 6400 km, what is the orbital radius?