Which of the following statements is true

Animals which live on land but return to water to breed.

The sun is mostly made of which gas?

Of the following metric units which one is the smallest?

Of the following elements which is the most common in the earth’s crust?

Corals are animals that live in

A rise in atmospheric temperature due to an increase in carbon dioxide, methane and other gases that trap heat in the atmosphere called

A 30% solution of barium chloride is mixed with 10 liters of water to form a 20% solution. How many liters of the original solution did we start with?

A substance that gives up hydrogen ions to water to form hydronium ions is called

A compound that is made up of the positive ions of a base and the negative ions of an acid is called

It is the property of matter that is independent of its surrounding conditions and position is

The sum of two integers is 4. Twice the difference of the integers is 20. Find the two integers.

Carbon-14 has a half-life of approximately

Which of the following has four significant figures?

An orbital can never occupied by

A positively-charged ion has:

Acceleration is the rate of change of velocity per unit time. A car accelerates uniformly from 15 kph to 45 kph in 10 seconds. Find its acceleration.

Identifying erros

1. The value of the peso declines as the rate of inflation raises. No error.

Identifying errors

2. The differential attractions of the sun and the moon has a direct effect on the rising and falling of the tides. No error.

Identifying errors

3. Fortune Magazine is interesting, informative and it is easy to read. No error.