A keystone species helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.
Answer:
Option (1), (3) and (5).
Explanation:
Positive feedback mechanism also exist in the environment that increases the causative effect of the environment. The environment can change the temperature, precipitation and other climatic conditions of the area.
The lack of moisture in Sahara desert and deforestation can cause the trees extinction. The temperature can be increased by the green house gases as the warm atmosphere causes evaporation. The snow gets melted due to increase in temperature and the ground becomes more darker.
Thus, the correct answer is option (1), (3) and (5).
Answer:
Pretty sure its A, and if its not, i'm sorry its 10 a.m and i'm still half asleep.^O^
Hello!
The answer to your question, "the idea that rocks form over a long period through the slow geologic processes is called ___", would be gradualism.
Hope this helps, and have a great day! :)
