We can separate an insoluble solid from a liquid using:

The specific heat capacity of a particular liquid is 3000 J kg^-1 K^-1. A large beaker containing 2 kg of the liquid has to be warmed from 25 ℃ to 35 ℃. A 100 W heater is used. If all the thermal energy could be transferred to the liquid, how long would it take?

The biceps and triceps are an antagonistic pair of muscles because:

In an endothermic reaction:

__________ is a primary storage device that may be programmed and reprogrammed by the user.

John Smith is employed at $8 per hour, he is paid time and a half for hours of work excess Of 44 hours per week. Last week worked for 50 hours. His gross earnings were

Instructions: Choose from the four suggested answers the word which is closest to OPPOSITE in meaning to the underlined word.

She paid meticulous attention to her work as she attached the beads to the costume.

When an acid neutralises an alkali the pH is likely to be:

Which of the following statements is true?

The number of electrons shared in a single covalent bond is:

What unit measurement is used to express the speed of memory?

“ individual countries in the region are too small to make their presence felt on the world stage.”

Implied in this statement is the need for

In the Venn diagram above, the shaded portion represents

The white blood cells that produce antibodies are called:

Which of the following substances contains the elements carbon, hydrogen, oxygen and nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins

In the rectangle above, if ∠AEB = 80°, then ∠DAC =

In a food chain a plant is a producer because it produces:

All of the following are possible consequences of global warming EXCEPT for:

Which of the following properties of water is not important to the survival of living things?

Which one of the following factors does NOT affect the rate of transpiration?