The Living World: Adaptations and Classification — Science STD 7 — Question

During digestion does all the food that we have eaten get converted into useful nutritive substances?

Why does the pitcher plant feed on insects even though it produces food by photosynthesis?

What is meant by metal mineral and non¬metal mineral?

A force of 1000 N was applied to stop a car that was moving with a constant velocity. The car stopped after moving through 10m. How much is the work done?

What is the need and importance of soil testing from the point of view of farmers?

What are the needs of cells?

Why does the halwai wrap up cloth around the end of his slotted spoon while stirring the boiling milk in his large kadhai?

Why do we wear woollen clothes in winter?

Why does a bar magnet kept at a distance doesn’t attract pins?

How will you check with the help of soap powder whether water is hard?