Rachel Carson played a key role in the birth of environmentalism in the 20th century.
She became increasingly aware of the harmful facts of insecticide DDT on the environment. This compelled her to write her most famous work Silent Spring and defending herself against attacks from commercial interests.
The book also played an influential part in persuading governments to ban or heavily restrict the use of DDT and similar chemicals that persist in the environment.
Answer:
The answer is Carbon Dioxide
Answer:
Loss of cell wall integrity or
Explanation:
Grams staining i a staining method used to classify bacteria into two main classes. Gram positive and Gram negative.
They are differentiated according to the ability of their cell wall to retain the primary stain color of the crystal violet stain or the counter stain pink.
Bacillus subtilis is a Gram positive bacteria hence it is supposed to stain purple.
Therefore, when it stained pink is an error. it shows loss of the cell wall integrity due to old age, overdecolorization or over fixing with heat.
