Advertisements
Advertisements
प्रश्न
Tick the most appropriate answer.
Photosynthesis requires
पर्याय
heat energy
wind energy
sunlight
sound energy
Advertisements
उत्तर
sunlight.
APPEARS IN
संबंधित प्रश्न
Define physical change. Give two examples for the above changes.
State whether the following is physical or chemical change.
Digestion of food —
Give the main differences between physical changes and chemical changes.
Which of the following are physical changes and which are chemical changes ?
Freezing of water
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
Select the chemical changes from the following list of changes
Rotting of eggs.
Select the correct answer from the choice given below to complete the sentence
The energy required for completion of a physical change is ______________ when the change is reversed.
When ice melts to form water, change occurs in its
Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are:
State whether the following statement is true or false:
Anaerobic bacteria digest animal waste and produce biogas.
