*2022 BECE INT. SCIENCE SOLUTIONS NO. (4)
Ditto ditto 💯

4a)
- egg,
- larva,
- pupa
- adult.

4b)Air is regarded as mixture because of the following reasons:
_(PICK ANYONE OF YOUR CHOICE)_
- Air can be separered into its consituents like oxygen m, nitogen , etc , by the the physical process of fractional distillation (of liquid air).
- Air shows the properties combustion , carbon dioxide turns lime water milky and air also turus lime water milky, though very slowly.
- Heat and light , etc , are neither given out nor absorbed when air is prepared by mixing the required proportions of oxygen , nitrogen , carbon dioxide , argon ,water vapour., etc.
- Air has a variable compostion because air at different places contains different amounts of the various gases, it does not have a definite formula.
- Liquid air does not have a fixed boiling point

4c) magnetic pole is a region at each end of a magnet where the external magnetic field is strongest. A bar magnet suspended in Earth's magnetic field orients itself in a north–south direction.

4d)
- less seed expenses,
- better controlling of stubble,
- less work on the soil,
- more easily controlling weeds between rows.

*COMPLETED 💯✅*

Inter science solutions

Provisional time table

Good everyone