Answer:
4 km/h
Explanation:
Average speed = Distance / time
Distance = 2 km
Time = 30 minutes = 0.5 hours [For units to match]
Average speed
= 2 / 0.5
= 2 x 2
= 4 km/h
False. The integrated pest management system uses the effective practices and technologies for improving the productivities and increasing the sustainability. Use of resistant varieties, limited use of chemicals, alternate cropping, use of manure and use of chemicals after obtaining sufficient knowledge about them, etc. increase the crop productions.
C.) <span>All the electrical energy is transformed to light energy and heat energy.
[ Remember, the first law of Thermodynamics,Energy can neither be created nor destroyed ]
Hope this helps!</span>