A solar eclipse is when the moon moves between the earth and the sun, so the moon casts a shadow on the earth
        
                    
             
        
        
        
Answer; 
This is because most likely some time a ago there use to be Ammonites living there and as they died there, they got fossilized.
Explanation; 
-Fossils of a marine animal called Ammonite are found in large numbers in the Kali Gandaki river in Nepal. Ammonites were sea animals having shells - either straight or coiled. When the Tethys sea disappeared, they were caught in the shale layers of clay and transformed into fossils. This is one of the proofs that the Himalayas were indeed once under water.
 
        
                    
             
        
        
        
The correct order of the following events on the mass flow of materials in the phloem is:
- Leaf cells produce sugar by photosynthesis.
- Solutes are actively transported into sieve tubes.
- Water diffuses into the sieve tubes.
- Sugar moves down the stem.
Correct answer: letter C.
This is because the mass flow of materials in the phloem must pass through all these processes in a consecutive and orderly manner, from the cell to the stem, in order to allow nutrients and other vital materials to reach from the plant roots to the leaves and fruits.
<h3>How is this transport of nutrients and other vital materials achieved?</h3>
This is accomplished by the transport of solutes through the phloem's network of channels, which contain fluids, mineral salts, vitamins and other nutrients essential to plant health. Mass flow also helps distribute oxygen and carbon dioxide to all parts of the plant. These materials are necessary for plant respiration and growth.
Learn more about the phloem:
brainly.com/question/9850143
#SPJ4
 
        
             
        
        
        
Answer: Agammaglobulinemia
Explanation:
Agammaglobulinemia may be defined as the inherited immuno deficiency disorder. The antibodies are present in minute amount in the serum of the affected individual.
Agammaglobulinemia is a type of the medical condition in which the body is unable to produce gamma globulins. The lymphocytes like B and T cells are absent in this disease.
Thus, the correct answer is option (1).