The part of earth that supports life is a(n)
biome
ecosystem
biosphere
organism

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water