State difference between acids and bases.

State the difference between manure and fertilizers

State any two differences between arteries and veins.

When is a chemical reaction considered a double displacement reaction ? Explain giving example. State a difference between displacement and double displacement reaction .

State the main difference between asexual and sexual reproduction.

State one difference between physical and chemical change.

State two differences between a convex and a concave lens.

State the difference between meiocyte and gamete with respect to chromosome number.

State one difference between Kilowatt and Kilowatt hour. Express 1 kWh in joules.

In the context of reproduction of species state the main difference between fission and fragmentation. Also give one example of each.