Pollution is the introduction of contaminants into the natural
environment that cause adverse change. Pollution can take the form of
chemical substances or energy, such as noise, heat or light. Pollutants,
the components of pollution, can be either foreign substances/energies
or naturally occurring contaminants. Pollution is often classed as point
source or nonpoint source pollution.
Hope this helps :p
Answer:
Explanation:PRC1 accumulates on the central spindle in anaphase,
and suppression of PRC1 expression causes failure of microtubule interdigitation.
A red shift means that the object is moving away from you.
Answer:B
Explanation:
The last pair are sex chromosomes. Different pair is XY which is a male chromosome. Same pair is XX which is Female
