Prior to the industrial era, pre-1780, affected earth's climate because they emitted both aerosols and carbon dioxide into the atmosphere.

volcanoes

Explanation:

volcanoes

Earth's climate was influenced by volcanoes before the industrial era since they released either aerosols, carbon dioxide or sulfur dioxide into the atmosphere.

As volcanic eruption occurs, they inject lava, carbon dioxide, ash, molten rock, sulfur dioxide, silica, and dust. Such gasses are very dusty and toxic in the environment. These volcanic gasses remain forever in the atmosphere, affecting the climate.

the bal will not change its velocity.