Which procedures were followed in this lab to decrease experimental error? check all that apply. using only two types of seeds, both from the same source having one student count every sprout in every quadrat using adjacent plots of land for both groups increasing the sample size by combining data from multiple groups repeating the experiment indoors under growth lights measuring plant height the same way and at the same time for both groups

using only two types of seeds, both from the same source

using adjacent plots of land for both groups

increasing the sample size by combining data from multiple groups

measuring plant height the same way and at the same time for both groups

A,C,D,F

Explanation: I got it right on edge

ya the other dude is right

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.