Answer:
<u>Cuticle</u> - It also has a waxy material that protects the leaf from attacks by bacteria, protects inner tissues from mechanical damage and acts as a water proof layer to prevent excessive water loss.
<u>Palisade mesophyll</u> - They have many chloroplasts used to absorb light energy used for photosynthesis. 
<u>Spongy mesophyll</u> - The cells are loosely packed together leaving air spaces that allow for air circulation and gaseous exchange.
<u>Guard cell</u> - They have thick inner walls and thin outer walls to control the opening and closing of the stomata.
 
        
             
        
        
        
Answer:
Radiative transfer 
Explanation:
The greenhouse effect is a phenomenon of radiative transfer, the process by which the energy of light waves is exchanged in matter. Radiative transfer dictates what energy is reflected, absorbed, and emitted.
 
        
             
        
        
        
Answer: It's eaither A. To understand the world around us 
                OR 
                B. To solve a problem 
Explanation:
 
        
                    
             
        
        
        
Answer:
1. Before: carbon dioxide After: Oxygen
2. Oxygen
3. Chloroplast