Question

Photosynthesis in plants is a _____________ change.
$\left( A \right)$ Chemical
$\left( B \right)$ Physical
$\left( C \right)$ Both $A$ and $B$
$\left( D \right)$ None of these above

Answer 1

Hint: Photosynthesis, a process in which carbon dioxide reacts with water in presence of chlorophyll and sunlight to produce carbohydrates (glucose) and oxygen is known as photosynthesis. Green plants make food by photosynthesis.

Complete step by step answer:
Photosynthesis is the process through which plants convert light energy into chemical energy. In photosynthesis a chemical reaction involved,
Water and carbon dioxide combine in the presence of sunlight to form glucose and oxygen. Since a new chemical species is formed, it is clear that photosynthesis is clearly a chemical change.

Thus, the correct option is $A$.

Additional information:
Photosynthesis is a major process that is involved in the manufacturing of food by the plants for their growth and sustainability. The process of photosynthesis plays a major contribution to the advancement of the food chain as well as for maintaining the ecological balance in nature.
Sunlight, Chlorophyll, Carbon dioxide and water are necessary to carry out the process of photosynthesis. The solar energy is captured by the leaves and stored in the plants in the form of food. Thus, the sun is the ultimate source of energy for all living organisms.
Chlorophyll: Chlorophyll is green pigment which is found in the leaves. During photosynthesis, chlorophyll containing cells leaves the presence of sunlight, and uses carbon dioxide and water to synthesise carbohydrates.
The process can be represented in an equation:
${{Carbon dioxide + water}}\xrightarrow[{chlorophyll}]{{sunlight}}{{Carbohydrate + Oxygen}}$

Note:
The primary function of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use. Photosynthesis happens in a region of a cell called chloroplasts.