Question

1. Which of the following is not a primitive unit of measuring length?
(a) Handspan
(b) Cubit
(c) Yard
(d) Metre
2. Which of the following is not a modern tool to measure time?
(a) Sand-clock
(b) Pendulum clock
(c) Mechanical clock
(d) Quartz clock​

Answer 1

2.)a.) sand-clock

Explanation:

Hope this answer will be helpful..

Answer 2

Answer 1 - b) Cubid is not a primitive unit of measuring length

Answer 2- a) Sand clock