Question

1. summarize where do earthquakes occur? explain your answer.
2. analyze how can volcanoes benefit plants and animals?
3. explain what is the hydrologic cycle?
4. explain why is salt water important to life on earth?

Explanation:

1. Earthquakes mainly occur along tectonic - plate boundaries where stress accumulates and is released.
2. Volcanoes can benefit plants and animals by enriching soil with nutrients from volcanic ash, creating new habitats, and releasing water vapor and other gases.
3. The hydrologic cycle is the continuous movement of water on, above, and below the surface of the Earth, involving evaporation, condensation, precipitation, infiltration, and runoff.
4. Salt water is important for life on Earth as it is home to many marine organisms, affects ocean currents which influence climate, and plays a role in the water - salt balance in some organisms.

Answer:

1. Earthquakes mainly occur along tectonic - plate boundaries.
2. Volcanoes enrich soil with nutrients, create habitats, and release gases.
3. The hydrologic cycle is the continuous movement of water on, above, and below Earth's surface.
4. Salt water is home to marine organisms, affects climate via ocean currents, and helps with water - salt balance in some organisms.