Biology
A strong chemical substance which is used on objects and surfaces in our surroundings to kill germs:
- Cresol
- Carbolic acid
- Iodine
- Mercurochrome
Related Questions
Which one of the following is non-biodegradable?
- DDT
- Vegetable peel
- Cardboard
- Bark of trees
Aqueous humour is present between the:
- Lens and Retina
- Iris and Lens
- Cornea and Iris
- Cornea and Lens
Which one of the following is a Greenhouse gas?
- Oxygen
- Methane
- Sulphur dioxide
- Nitrogen
Complete the following paragraph by filling in the blanks (i) to (v) with appropriate words:
To test a leaf for starch, the leaf is boiled in water to (i) …………… It is then boiled in Methylated spirit to (ii) …………… The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (iii) …………… solution is added. The region of the leaf which contains starch, turns (iv) …………… and the region which does not contain starch, turns (v) ……………