Question

. They finished work_______ sunset.( use appropriate preposition) *
on
in
by
none
Option 5

Answer 1

Answer:

They finished the work by sunset.

Explanation:

this is the right answer. hope it helps.

Answer 2

Answer:

methane

Biogas is usually made up of around 50-70% methane (CH4) and 25-45% carbon dioxide (CO2), with other gases such as hydrogen (H2), hydrogen sulphide (H2S), water vapor (H2O), nitrogen (N2), oxygen (O2), ammonia (NH3) making up the rest.