Answer:
The Earth's climate has always changed
Explanation:
Over the course of the Earth's 4.5-billion-year history, the climate has changed a lot. This is true. But the rapid warming we're seeing now can't be explained by natural cycles of warming and cooling.
Answer:
Pie Graph Z
Explanation:
According to the bar graph:
If 40% is Bulldog then the 25% would be Poodle which is a total of 65% leaving two equal bars (so 100%-65%=35%). That is 17.5% for Beagle and 17.5% for Collie.
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As materials move from higher to lower concentration diffusion is occurring.
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.