A person of blood group AB has:

Two commonly used types of impact printers are __________.

Which of the following methods of fishing is MOST damaging to the eco-system?

Tooth decay can be caused by:

Which of the following is the Highest Common Factor of 18, 24 and 36?

When limestone is heated strongly it changes into:

In a school of 910 pupils, ²/₅ are girls and ²/₇ of the girls play netball. How many girls play netball?

The main metal in tin cans used to preserve food is:

All gas exchange surfaces in vertebrate animals have:

Plants lose water through their leaves by the process of:

At the cathode all of these can happen EXCEPT for:

A flame test colour of red could indicate the presence of a compound of:

The voltages from the electrochemical series are -2.92 for potassium and +0.34 for copper, which shows that:

Vegetables like cauliflower, cabbage and broccoli have been bred from the original wild brassica plant by:

Which of the following transactions should be debited in the Cash Account?

Hydrochloric acid forms salts called:

The existence of a neutral particle named the neutron was first confirmed experimentally by:

In an endothermic reaction:

Different structures based on the same molecular formula are called:

75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?