Download App

Improvement in Food Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceImprovement in Food Resources1 Mark
Question
What is biological control?
✓

Answer

Biological control is a method of controlling pests such as insects, mites, weeds and plant diseases using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically it also involves an active human management role.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Do as directed; [1 M ]" from Improvement in Food Resources→Improvement in Food Resources — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

What is the peculiarity of nerve cell?
→
Name any one structure in our body which bears ciliated epithelium.
→
What is meant by the concentration of a solution?
→
What is the name if the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves?
→
Chemicals used to kill weeds are called _______ .
→
Name the device or machines which convert: Electrical energy into light energy.
→
Which physical quantity remains unchanged after reflection of a sound wave?
→
What conclusion can be obtained from the observation that when the prongs of a sound making tuning fork touch the surface of water in a beaker, the water gets splashed?
→
All the gases form cathode rays and anode rays when electricity is passed through them: What does the formation of anode rays tell us about the atoms?
→
What is the $SI$ prefix for the following multiples and submultiples of a unit$?$
$10^{-9}$
→