Plants have to save what little water they do get. Or they have to get water from their roots.
        
                    
             
        
        
        
there are three main type of rock is sedimentary and metamorphic each of the rock these rocks are formed by physical changes such as melting point eroding contacting or deformed that are part of the rock cycle sedimentary rocks are formed from pieces of other existing blog or organic material 
 
        
                    
             
        
        
        
Answer:
Weathering
Explanation:
The answer is weathering because, weathering is the breaking or wearing down of rocks, soil, minerals, and wood. The water wore down the rock, making it smooth, so it connects to the definition that i just gave you.
Hope it helped!
 
        
             
        
        
        
Answer:
Hyperpolarization
Explanation:
When the membrane potential becomes more negative than the resting potential, the membrane is hyperpolarized. Hyperpolarization is inhibitory in nature and decreases the ability of the neuron to generate a neural impulse. During signal transmission at a chemical synapse, binding of neurotransmitters to the receptors stimulates the opening of ligand-gated ion channels. The flow of ions changes the voltage across the membrane and may cause depolarization or hyperpolarization. For instance, the opening of Cl– or K+ channels causes hyperpolarization.