Which of the following activities of man causes soil erosion? Agriculture Techniques

Forest Fires

Mining Processes

All of the above

your answer is rna to the question.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).

c is the correct answer!