Question 14 Coal is the largest source of electricity worldwide. What can be an environmental impact of the surface mining of coal?

O loss of habitats and biodiversity
O greenhouse gas emissions
O radioactive contamination
o contamination of groundwater

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm