Answer:
Gavuva
Units used in measuring long distances included the "Gavuva", "Yoduna", and "Usaba" (plurals Gavu and Yodun - a Yoduna was 4 Gavu) and the "hoo kiyana dura", which was the audible distance of a shout of 'hoo' by a person. Base of these system of measuring length was the human body.
Explanation:
How can the enzyme activity be slowed down?
A. Increase temperature from 10*C to 20*C
B. Increase temperature from 20*C to 30*C
C. Decrease the temperature from 30*C to 20*C
The elements potassium (K) and chlorine (CI) can form an ionic bond. Which of the following
statements correctly explains what occurs (in this ionic bonding)?
1.) As chlorine has 7 valence electrons, it tends to form bonds to gain one electron (to get a full valence shell of 8).On the other hand, potassium has one valence electron, so it tends to lose this electron to other atoms (and
become a cation)
2.) As chlorine has 7 valence electrons, it tends to form bonds to lose all 7 electrons. On the other hand,potassium has one valence electron, so it tends to gain 7 electrons (to get a full valence shell of 8).
3.) In this ionic bonding, potassium is the anion and chlorine is the cation.
4.) During the ionic bonding between potassium and chlorine, 8 electrons are shared between these 2 atoms.
Answer:
As chlorine has 7 valence electrons, it tends to form bonds to gain one electron (to get a full valence shell of 8).On the other hand, potassium has one valence electron, so it tends to lose this electron to other atoms (and
become a cation)
Which statement accurately describes the Doppler effect?
Answer:
It indicates galaxy motion through light wavelengths. It indicates a galaxy moving toward Earth through red shift.
Explanation:
Answer: It’s A. It was used by Hubble to measure velocities of galaxies.
Explanation: It’s right on edge 2021
Which scientific discipline is correctly matched to a contribution to society? biology; theory of relativity geology; theory of continental drift ecology; conserving the environment astronomy; developing quantum mechanics
Answer:
B) geology; theory of continental drift
Explanation:
A scientist is observing a eukarotic cell and a prokaryotic cell. Which structure could she only observe in the eukaryotic cell? cytoplasm DNA ribosomes a nucleus
Answer:
D. a nucleus
Explanation: