Wind, it takes nothing to use wind, which means it doesn't put harmful emissions into the atmosphere.
Explanation:
Animal indicator list is a barometer to check how a particular ecosystem is affecting the lives of particular animals. The indicator measures stress or behavior in the ecosystem to know whether to protect the specie or allow them undisturbed
This is to avoid or reduce to barest minimum incidences of extinction of such specie in the ecosystem.
The grizzly sudden reduction in number from well over 100,000 in California to less than nothing in 1942 triggered the need to protect the grizzlies from human destruction and possible extinction. Grizzlies was a national specie and appeared in the flag of California. The population gradually reduced in most of the states of Idaho, Utah, Alaska and many more.
The grizzlies in 1975 were declared protected species to avoid being hunted or trapped by humans and to repopulate them in the areas where they once lived. Their future will depend largely on humans ability to allow them to coexist with them, by setting out a large area for them to live and regroup.
This will go to balance the ecosystem which has been tampered or disturbed by development.
The North Star appeared to move higher in the sky.
Answer: Option 3
<u>Explanation:</u>
North star is a special star found in the sky which is said to be fixed in the sky and does not move from it's place and the reason for this is that this star is very near to the axis of the planet Earth and is the only star that does not change it's position in relation to the rotation of earth. So since Albany is to the north of the New York city, the star will appear to move higher towards the north in the sky.
