Question

the 20th term from the last term of the A.P.= 3,8,13---------253 is?​

Answer 1

Answer:

Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. This material is called leaf litter. When animals die, their remains add to the litter. Over time, all this litter decomposes.