Akes antages of internal fertil
(d) State four uses of soil in agriculture,
(a) Write down four health benefits of wate
(b) (i) Give two ways in which crop rotation
(ii) Distinguish between shifting cultivati
c) (i) What is a fuse?
(ii) Nanae
Dane the colour code of the wire on w
plug.
(1) What is a simple machine
(ii) Give two​

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?