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2. Hydrogen can be produced from diverse domestic resources with the potential for nearzero greenhouse gas emissions. Today, 98 percent of hydrogen is made from fossil fuels with no CO2 emissions control and is responsible for 830Mt of CO2 each year. Hence, low-carbon hydrogen is key to our future energy systems. a) State THREE common ways to produce low-carbon hydrogen today? Explain any TWO of them? b) If hydrogen economy becomes a reality in the future, how would you envision global energy supply and demands? c) What are the key concerns about hydrogen storage and transport? How hydrogen storage and transportation can be made feasible? What are the different ways used for hydrogen storage? d) What is the hydrogen fuel cell used for? What are its main components and working principle