A common rock type found within oceanic crust is called basalt rocks. It is dark just like an igneous rock and it is basically a type of lava from a volcano.
I can give you one:
One of the theories (in which i mostly believe in) is the one when every period of time, the climate changes. Now, we are in the warmth period, but after this period, there will be a cooler climate, and keeps repeating every while (think about the ice age)
The correct definition of biodiversity is the following: Biodiversity is the variance of plant and animal species within an environment. Correct answer: C
The term biodiversity denotes the variety of life on Earth: variety of flora and fauna. It includes species, genetic, and ecological diversity. Without biodiversity the life on earth would be impossible.
For energy resources, Poland's most important one is coal (and also lignite) which is mined in Upper Silesia in some large open pits mined there since the 19th century at least. It does have some petroleum in the Baltic Sea but still must import it from Russia.