What does chain of market?

(25pts) this photograph represents the chinese government’s response to a challenge it faced. what challenge do you think this is? what steps might china have taken to address this challenge?

When constance visited lookout mountain, what region was she seeing?

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling