Will give Brainliest What are the most important methods and instruments used to predict volcanic eruptions?

Which branches of natural science include the study of an organism that lived 10 million years ago

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.

An object is kept at 45 m high and how much time will it take to reach the ground