The effect of chlorofluorocarbon is
...The effect of chlorofluorocarbon is
reducing oxygen concentration in the atmosphere
depleting the ozone layer
screening ultra violet rays
increase in carbon dioxide concentration
Correct answer is B
No explanation has been provided for this answer.
The common thing in plant and animal cell is ...
In mammals, the exchange of nutrients and metabolic products occurs in the ...
The element common to protein, carbohydrate, and lipid is ...
Root pressure and the transpiration pull are biophysical processes which account for the ...
Which of the following best describes the homologous chromosomes? They are ...
A step in the movement of energy through an ecosystem is a description that best fits the term ...
Which of the following is a difference between plant and animal cells? ...
In the diagram, the change in the length of the neck of the giraffes shown was brought about by ...
In a water culture experiment, a plant showed poor growth and yellowing leaves. These symptoms ...