Answer: Availability of water
Explanation:
When a person is travelling from a forest ecosystem towards grassland ecosystem the number of trees gets reduced in number.
The trees are replaced by prairie grasses. This change is because of less water availability in the area having grass.
The amount of precipitation decides the type of vegetation found in that area.So the area having trees would be having more precipitation as compared to the area having prairie grass.
Answer:
Explanation:
Diseases which spread with communicable are often require exchanged fluid, low quality hygiene, air which is breathed by that person etc.These are often caused by pathogens or germs . Diseases can spread from one animal to another. Ho_o sapiens sapiens(humans) being animals, they may get effected from these too. Examples are;
Ebola(West African)
Zika(caused by mosquitoes)
Chicken pox
Swine flu
.
.
.
Answer:
Rocks.
Explanation:
Scientists study rocks from the Precambrian period because isn't really a significant fossil record from the Precambrian.
Answer: Hope this helps!
It is useful to use light years when you have to measure a super long distance as a light is approximately 6 trillion miles. And astronomical units are known as measurements within our solar system.
