Question

introduction of climate​

Answer 1

Answer:

Although scientific theories vary, it is believed that D) the start of glaciation and climatic changes caused the Permian mass extinction.

Explanation:

Answer 2

Answer:

1. the climate is the average weather experienced over months or years and climate variability is the short-term fluctuations around the expected average weather... the major human cause climate change is the increasing release of greehouse gases ( carbon dioxide, methane and nitrous oxide) into the atmosphere.