How many units are fundamental and complementary?

1. 2 fundamental, 7 complementary
2. 3 fundamental, 6 complementary
3. 7 fundamental, 2 complementary
4. 4 fundamental, 5 complementary

The fundamental unit is —

1. newton
2. pascal
3. hertz
4. second

One millimeter is …………… part of a metre:

1. One hundredth
2. One thousandth
3. One billionth
4. One millionth

One astronomical unit is equal to:

1. 1.496 x 10¹¹ metre
2. 1.596 x 10¹² metre
3. 1.498 x 10¹⁰ metre
4. 1.398 x 10¹¹ metre