On the periodic table, you will see that they are grouped into different groups. Well, on the right, you have the groups, obviously. You are supposed to match the elements to the group that it is in.
(If you don't know the groups, you can find one online under images.)
Hope this helps! Please give brainliest answer!
D) Warm and Moist
This is because its near the equator, which the sun shines on, making it warm, and because its warm, evaporation occurs making it moist.
B cytoplasm passes light threw the eye
Answer:
Neither observer nor subjects know which subject receives the vaccine and which receives a placebo
Explanation:
In a double-blind study neither the participants nor the experimenters is aware of who is receiving a particular treatment.
Its used to prevent bias in research results from demand characteristics or the placebo effect
