Some poor countries sell off their natural resources or accept toxic waste from other countries in order to improve their economy. true or false

True

Explanation:

To understand the case as given in the question let's see the case of Kyoto protocol through which carbon crediting was introduced.

As per the carbon credit concept each country has a limited number of carbon credits which signifies the amount of carbon a country can release on per year basis.

Since poor nations do not have high industrial production, thus their carbon credits are left unused. Developed nations buy these unused carbon credits from poor countries and in lieu of providing employment and development install their manufacturing plants in these countries. In this way they use the resources available in these poor countries and also pollute their environment.

Hence, the given statement is true.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!