Which of these not pictured in source 2 addresses a common imperial technique implemented by the chinese comparable to the techniques displayed in source 1? a)the chinese constructed vast networks of concrete roads b)the chinese constructed elaborate canals throughout their empire c)the chinese constructed frontier forts garrisoned by multi-ethnic forces d)the chinese constructed fortified cities connected to the defensive wall networks

C)the Chinese constructed frontier forts garrisoned by multi-ethnic forces

Explanation:

As you can see in both maps, the ones that built roads and connected the whole empire were the Romans, in the Chinese map you can observe how they actually put their efforts in a different place cause they needed to defend themselves from foreign attacks and invasions, their priority was to protect the center of the empire so they built the great wall, so the answer would be C)the Chinese constructed frontier forts garrisoned by multi-ethnic forces

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listen to your body. hold off on exercise when you're sick or feeling very fatigued. cut back if you cannot finish an exercise session, feel faint after exercise or fatigued during the day, or suffer persistent aches and pains in joints after exercising.

if you stop exercising for a while, drop back to a lower level of exercise initially. if you're doing strength training, for example, lift lighter weights or do fewer reps or sets.

for most people, simply drinking plenty of water is sufficient. but if you're working out especially hard or doing a marathon or triathlon, choose drinks that replace fluids plus essential electrolytes.

choose clothes and shoes designed for your type of exercise. replace shoes every six months as cushioning wears out.

for strength training, good form is essential. initially use no weight, or very light weights, when learning the exercises. never sacrifice good form by hurrying to finish reps or sets, or struggling to lift heavier weights.

exercising vigorously in hot, humid conditions can lead to serious overheating and dehydration. slow your pace when the temperature rises above 70°f. on days when the thermometer is expected to reach 80°f, exercise during cooler morning or evening hours or at an air-conditioned gym. watch for signs of overheating, such as headache, dizziness, nausea, faintness, cramps, or palpitations.

dress properly for cold-weather workouts to avoid hypothermia. depending on the temperature, wear layers you can peel off as you warm up. don't forget gloves.

this isn't a question and if you're going to list things be kind and use commas.