How many can you check? I personally think its all 4 but i could be wrong :)
Answer:
1. An atom is an object that needs a large-scale model. A large-scale model must be bigger than the object itself.
2. The correct answer among the choices provided is option C. It is a theory that light travels at 300,000 kilometers per second.
Explanation:
C. Salt can be formed though the ionic bonding of an anion and a cation
The most active geothermal resources are usually found along major tectonic plate boundaries where most volcanoes are located. One of the most active geothermal areas in the world is called the Ring of Fire, which encircles the Pacific Ocean.
When magma comes near the earth's surface, it heats ground water trapped in porous rock or water running along fractured rock surfaces and faults. Hydrothermal features have two common ingredients: water (hydro) and heat (thermal).
Geologists use various methods to find geothermal reservoirs. Drilling a well and testing the temperature deep underground is the most reliable method for locating a geothermal reservoir.