Answer:
Volcanic rock, quartz, and sandstone.
Explanation:
Explanation:
a green and sustainable city is a community of residents, neighbours, workers, and visitors who strive together to balance ecological, economic, and social needs to ensure a clean, healthy and safe environment for all members of society and for generations to come.
Overfishing at sea can lead to an extinction.
Overfishing is a serious problem, it affects lot of marine species, at every water corner of the Earth. If the fishing is not controlled strictly it leads to extinction of the marine wildlife, lot of species have already been extinct, thousands are on the verge of extinction. Also, the extinction of a single species makes big problem in the ecosystem, removing lots of species has huge impact on lots of ecosystems that are connected and the consequences are irreparable.
Answer:
Conduction, radiation and convection
Explanation:
Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface.
As the warmed air rises, cooler air moves in to take its place. This is called convection, the energy transfer through the movement of matter.
