Thoughts precede all speech acts and these thoughts pop up in our heads even in the absence of any stimulus.
Among the provided options, the one that best captures the essence of the passage is: The ability to think about objects not present in our environment precedes the development of human communication. This option precisely reflects the passage's core argument that the capacity to conceptualize absent objects is a precursor to human communication.
Write any four problems faced by the animals that thrive in forests and oceans: 
Verbal to Non-Verbal:
A stain is an unwanted mark of discolouration on a fabric caused due to contact with another substance which cannot be removed by the normal washing process. Stains can be grouped on the basis of their origin, e.g. tea, coffee and fruits come from vegetable source. Stains from shoe polish, tar, oil paints come under grease stains. Animal stains comprise of stains formed by milk, blood and eggs, whereas marks on your clothes after sitting on an iron bench are those of rust and come under mineral stains. Then there are stains that are formed due to dye, into perspiration which can be categorised under miscellaneous stains. Read the given passage and complete the table. Suggest a suitable title. 
