The answer to your question is A
The answer is letter c.
It can be both natural and human source of pollution. There are times when the intense heat can
trigger a brush fire and can expand depending on how strong the wind
blows. It can be caused by humans. it could due to carelessness of people leaving
flammable materials unchecked. Or using too much fuel that when lit would cause
a brush fire that would expand into a wildfires. The smoke from it pollutes the air.
Aumento del comportamiento agresivo. Aumento de los pensamientos agresivos. Aumento de los sentimientos agresivos. Disminución de la empatía. Aumento de la activación fisiológica.
D) the city streets in the summer are bursting with life
