"Diffusion is one way<span> by which </span>materials move<span> in and out of </span>cells<span>. Small molecules such as oxygen </span>can<span> pass </span>through<span> tiny gaps in the </span>cell membrane<span> by diffusion. ... Oxygen molecules </span>move<span> out of the </span>cell<span> by diffusion."</span>
Answer:
Helium
Explanation:
Helium is extracted in a few places in the world, namely USA, Algeria, Russia and Qatar. Helium is abundant in space, where it's produced as a product of the fusion reaction inside stars such as the sun.
The proteins on the surface of the virus change quickly and in shape
Answer:
In the given statement, per consumption of capita land is not given. Therefore, let's assume that per capita consumption of land is "A". In this case, the landmass needed to be cleared to meet the growing population need can be calculated as follows:
7% of 4790 is 353.3 individuals.
Therefore, to calculate the required landmass, we have to multiply per capita consumption of land with the number of individuals. Thus, "353.5 ✕ A" will be the total land required after 5 years, in addition to what they currently have.
