Improvement in Food Resources — Science STD 9 — Question

The true statement is:

Which of the following process is used to obtain common salt from seawater:

Find the correct statement:

Identify which of the following wave parameter is related to the volume of a sound?

Rinku and Pinku had half day schools during summer. They used to go to school by autorickshaw. They observed that the auto driver covered the top of the vehicle by some mats and sprinkled water on them regularly, which keeps it cool. Which of the following phenomena is involved here:

A group of cells alike in form, function and origin are called __________.

Sieve tubes and companion cells occur in-

You are on a frictionless horizontal plane. You can get off the plane:

Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order:

1. Rutherford’s atomic model.
2. Thomson’s atomic model.
3. Bohr’s atomic model.