How do you test a barometer?

Why are fossils in metamorphic rock usually disorted? What four ways can you kill microbes? How do you say good afternoon in India? What happens to matter the subtense when it is exposed to the cold? What is the botanical name of kakdi? What will scientist do if a hypothesis and conclusion does not match? What is the measurement of a measurement box of cement? Is it true or false that on a position time graph the average velocity is not equal to the slope of the line? What is the an definition of a Herbivore and an example? What should you always yield for? Where did the periwinkle plant originate? What are 5 Natural threats to information systems? Is table salt a liquid gas solid? What are the safety equipment in th laboratory? What is the length of germination in a clover? Importance of natural vegetation to humans? When two oceanic plates diverge? What are the microbes that become apparent when a microscope is switch to 1000X? Why does LCD display on the thermostat AC in the house periodically shuts off happens more during the summer then after a few hours it turns back on and the AC kicks in? Would you use a balance to measure the length of a stick?