Question

select 2 examples of endothermic processes. sulfuric acid & magnesium, photosynthesis, burning marshmallows, melting ice

Explanation:

Step1: Recall endothermic processes

Endothermic processes absorb heat. Photosynthesis (plants absorb light energy, a form of heat - related energy) and melting ice (ice absorbs heat to change from solid to liquid) are endothermic. Sulfuric acid and magnesium reaction is exothermic (releases heat), burning marshmallows is exothermic (releases heat as it burns).

Step2: Select the two

From the options, photosynthesis and melting ice are endothermic. So we select the options corresponding to "photosynthesis" and "melting ice".

Answer:

The two examples of endothermic processes are: the option with "photosynthesis" and the option with "melting ice" (assuming the options are labeled as per the text, e.g., if the second option is "photosynthesis" and the fourth is "melting ice", then the answer would be the second and fourth options).