What is humus in soil composed of?

Weathered rocks

Worms

Chick peas

Decayed organic remains

How do I use the prefix multipliers to express each measurement without any exponents?

Determine the sum ol the following measure- ments to the correct number of signilicant ligures. 1.55 cm + 0.235 cm + 3.4 cm

Which of the following characteristics must be present for a substance to be called a mineral?

7. Which of the following has to happen before the eardrum begins to vibrate with the same frequency as the source of the sound waves? A. Vibrations have to be transmitted to the fibers of the auditory nerve. B.

Is soidum bicarbonate and silver nitrate reacting a chemical or physical change?

Of the elements: b, c, f, li, and na. the element with the smallest ionization energy is

How does erucamide make substances scratch resistant?

Melting butter is a physical change. Which best describes what is happening? The butter changes into a different substance. The butter contains a new arrangement of atoms. The butter cannot turn into a solid again.

Which of these is used to extract soldium? a) Down's process b) Castner-kellener's process c) Kellener-Solvay's process d) Solvay's process

Are gas planets less dense or more dense?