WILL MARK BRAINLEST Which of the following are benefits of composting? Mark all that apply.

a
Reduces the amount of waste that is in landfills.
b
Provides food for hungry people
c
Creates nutrient-rich soil
d
Reduces greenhouse gas emissions
e
Saves resources

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

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.

What is the percentage composition of carbon in the compound ch4