ANWSER RIGHT AWAY, PLEASE!! NO LINKS! WILL GIVE BRAINLIEST!! From Assignment Lab: Ecological Succession on Edg 2021,
2 parts,
first: In this experiment, the was intentionally manipulated. It is the independent variable.
A.) amount of compost
B.) type of seeds dispersed
C.) number of plants

Second: The dependent variables that were measured were the .
A.) number if plants and average mass
B.) amount of nutrients and average height
C.) number of plants and average height

Thank you so much! Like I said NO LINKS I will give brainliest!

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н, о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

Fossil fuels are organic compounds that are made from