The light reaction begins in photosystem 1.
true
true
false

False

Explanation:

The given statement is False.

The light reaction begins in photosystem 2 (PS2).

In the process of light reactions in photosynthesis energy is generated so that it can be use in the dark reactions.

During light reaction, water molecule breaks down into oxygen molecule and an electron.  this free electron attains  attains a higher energy level in the reaction center of photosystem 2. The state of an unstable electron undergoes an electron transport chain (ETC). The electron flows from PS2 to cytochrome and then to photosystem 1 (PS1). In PS1 the light-independent energy takes place where further electrons are transfered to NADPH.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.