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Global warming is when the earth heats up (the temperature rises). It happens when greenhouse gases (carbon dioxide, water vapor, nitrous oxide, and methane) trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This hurts many people, animals, and plants. Many cannot take the change, so they die.
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Covers all important JCL concepts.
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This tutorials covers all Cobol Topics from STRING to COMP-3.
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This Tutorial covers all important aspects of DFSORT with examples
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Explains how we can debug a program
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Explains how to browse , edit and delete datasets
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Quick Start tutorial on Changeman
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Important Abend codes explained
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