Answer:
The simplest definition of ecosystem is that it is a community or a group of living organisms interacting with each other and with non - living things.
HOPE THIS HELOS AND OLS MARK AS BRAINLIEST AND THNXX :)
Most people start to face new issues at the ages of 11-13 some may gain this at older ages, but it typically starts around that time, some causes of this are: Puberty;School; Problems at home; etc.
Answer:
The skills you would require to become an advanced martial artiest would be,
you would need to have peace and know how to keep your temper in check.
you would need discipline and high confidence along with a good amount of focus lots of clear goals and the most important one you need respect for not only you but also for others.
you need self in forced skills.
The way it looks and it's different color