Tom is designing a pre-test, post-test study. the addition of a no-treatment comparison group, with the same pre-test and post-test, can address the following threats to internal

'nepal have varied vegetation as climate and landforms'. justify the statement

According to the article,"social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media

3. explain one example of how the u. s. has struggled to balance energy independence and environmentalprotection