Answer:
Wedge
Explanation:
Scissors are a pair of wedges that are combined together.
 
        
             
        
        
        
Answer:
I'm not 100% sure, but I think the answer would be the first one because there's a force pushing the object in every direction, so they would cancel eachother out and make the object stay in the same place.
Explanation:
pls vote brainliest
 
        
                    
             
        
        
        
a.) the belief that stars and planets revolve around the earth 
Explanation:
The geocentric model of stars and planets is the belief that stars and planets revolves around the earth. 
The model places the earth at the center of the system. 
- Geo - earth ; centric - center
- This was the original school of thought about the way the earth relates to other bodies in the universe. 
- This model was replaced by the heliocentric universe in which stars are at the center and the planets revolves round them. 
- The idea was put forward by Nicola Copernicus
learn more:
Energy of the sun brainly.com/question/1140127
#learnwithBrainly
 
        
             
        
        
        
Answer:
 When studying nanotechnology, scientists must be aware that their ideas may not work out. Their work could be very time consuming and cost a lot of money. Finally, scientists do not yet know all of the effects of nanotechnology on human health.
Hope it helps u:)