I believe the answer is: Recall memory
Recall memory refers to the capability to retrieve information that taken in the past. From all type of memory process, recall memory is the process that require the most conscious effort and have to rely on the combination of both short term and long term memory.
The five techniques are:
1) Simple Random Sampling
from the start, you take a random sample from the entire population of interest
2) Multistage Sampling
involves two or more random samples, where you first randomly sample clusters, and then randomly sample people in the the selected cluster
3) Cluster Sampling
clusters of participants within the population of interest are elected at random, than sample everyone in each cluster.
4) Stratified Sampling
the researcher identifies particular categories of interest and then randomly selects individuals within each category
5) Oversampling
a variation of stratified sampling in which research er intentionally overrepresents one of the groups.
Learn more about Cluster Sampling here: brainly.com/question/14510792
#SPJ4
1.fulfills social and economic potential
2.protects other ecosystems from damage
3.<span>sustains reproductive ability, biodiversity, and productivity</span>
The used there engineering skills to control water flow to bring fresh water in