Answer: C) The 85-degree class.
Explanation: An experimental group simply refers to the participants who are subjected to the actual treatment during a study. In the scenario above, the groups of participants are involved, while the first group were subjected to seventy degree temperature, which corresponds to the normal oom temperature, this means they weren't subjected to any actual treatment. The other group however witnessed a temperature higher than the normal at 85 degrees and as such makes them the experimental group.
Gross domestic product (GDP) is the broadest qauntitative messure of a Nations total economic activity. more specifically (GPD) represents monetary value of all Goods and services produce within a Nations Geographic borders over specified period of time
Answer:Zoroastrianism
Explanation: Founded by Zarathustra (Zoroaster).
True. It is something that people use a lot.