10.Biotechnology and its Application
normal

એકલ સંવર્ધનમાં ધાન્ય વનસ્પતિનો ઉછેર છે.

A

પેસ્ટ (ઉધઈ) તરફ ઉચ્ચ વૃત્તિવાળું

B

ઓછું ઉત્પાદન

C

અંત:જાતીય હરીફાઈમાંથી મુક્ત

D

નબળું મૂળતંત્રનું લક્ષણ

(AIPMT-2006)

Solution

(a) : Monoculture describes systems that have very low diversity. Monoculture is the destruction of a diverse ecosystem and replacement with a single species or crop. It depletes the soil, fruits and vegetables become more susceptible to pests and diseases than those grown in a diverse crop environment, thus requiring larger amount of chemical spray.

Standard 12
Biology

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