Yellow and dry leaves

From a fellow grower:

My plant is female seed.2 days of lower leaves turn yellow and dry.I don’t know that to be problem for plant or she reache the flowering stage.Please help me.I afraid…

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ILGM Support Ticket:

What is the strain and type(unknown bag seed, strain name, regular seeds, feminized seeds, auto-flower, etc)?

Indoor or Outdoor? If outdoor, planted in ground or in a container?
Size of space (max height and area, length/width)?

Soil or Hydro? Type of Medium used? System type?

pH? Of the soil or medium (root zone/reservoir/run-off) and of the water and/or nutrient mix that is fed to the plant?

Type and strength of nutrients used? NPK? EC/TDS/PPM levels? Of what you feed it as well as what is in the water by itself and in the soil/medium (run-off), or reservoir.

Temperature? Day vs. night temp or highest and lowest temps? Root zone temps?

Humidity %? Day vs. night

Light system/watts/lumens/FLUX/PAR?

Ventilation system? Size? CFM? CO2? AC, Humidifier, De-humidifier?

Number “weeks/days” from into Season, Vegetative Growth or Bloom/flowering?

When you fill this out we can help a little better and help narrow down what’s going on
I am mostly curious about age of plant and light used

That looks like used up fan leaves to me. Part of the photosynthesis.

Suspect same thing reason I asked age and light used though some dark hues so humidity may be mild concern