Question

What can happen when tectonic plates collide?

The sky gets dark
Volcanoes erupt

Earth moves around the sun
Grass begins to grow

Answer 1

When tectonic plates collide, the following can happen:

1. **Earthquakes**: The friction and pressure that build up at plate boundaries can lead to seismic activity, which results in earthquakes.

2. **Mountain Formation**: When two continental plates collide, they can push up the Earth's crust, forming mountain ranges (like the Himalayas).

3. **Volcanoes Erupt**: When an oceanic plate collides with a continental plate, the denser oceanic plate may be forced down into the mantle, leading to volcanic activity.

4. **Trenches**: Subduction zones, where one plate goes under another, can create deep oceanic trenches.

5. **Faults**: As plates slide past one another, they can create fault lines, which can also be sites for earthquakes.

So, from your list, "Volcanoes erupt" is a correct consequence of tectonic plate collision. The other options do not directly relate to geological processes associated with tectonic plate interactions.