The study of the internal structure of the Earth is known as

Physical sciences were divided into

A. 4 disciplines

B. 3 disciplines

C. 5 disciplines

D. 6 disciplines

The smallest change a sensitive beam balance can record is

A. 100mg

B. 10mg

C. 50mg

D. 1mg

By using prefixes, we can write 335 × 10-8 s as

A. 0.335 µs

B. 33.5 µ

C. 335 µs

D. 3.35 µs

When a standard is set for a quantity, then the standard quantity is called a

A. amount

B. rate

C. prefix

D. unit

The words or letters added before a unit and stand for the multiples or sub-multiples of that unit are called

A. mass

B. prefixes

C. units

D. rate