Answer:
Mohs hardness scale is a scale comparing hardness of rocks. There are 10 marker rocks 1-10. They are used to find the relative hardness of the other rocks.
Explanation:
Poaching refers to the illegal hunting of wild animals in violation of the laws which regulate hunting of wild animals. Over utilization refers to the exploitation of an animal to the point of extinction. Poaching activities include hunting and killing wild animals without licence, using illegal weapons to kill animals, killing animal out of season, etc. All these activities can lead to drastic reduction in the population of animal specie to the extent that the animals become extinct. A good example of an over utilized animal specie is passenger pigeon.
20 is the Number of Neutrons of potassium.
6. a, 7. c, 8. b , 9. e , 10. d , 11. e, 12.c
Answer:
The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion. ... While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries.
Explanation:
