Answer:
4
Explanation:
What is the difference between “Magma” and “Lava”?
A. It is just a name change, magma is melted rock inside of the earth in lava is what magma is called if it reaches the surface of earth
B. Magma is less dense than lava
C .Magma is formed deep in earth in lava forms near the surface of earth
D.Magma makes Igneous rocks and lava forms volcanoes
Answer: C
Explanation:
Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth's surface.
Which will most likely result if hot water is continually dumped into a stream?
A. Biodiversity levels in the stream will increase.
B. Dissolved-oxygen levels in the stream will decrease.
C. Phosphorus levels in the stream will decrease.
D. None of the above
Does density-dependent usually wipe out entire
populations?
Answer : What are density dependent limits on population?
Density Dependent Limiting Factors
The density dependent factors are factors whose effects on the size or growth of the population vary with the population density. There are many types of density dependent limiting factors such as; availability of food, predation, disease, and migration.