<span>1.The treatment whereby waste materials are separated from the blood by a machine is called dialysis. It </span><span>is a treatment that filters and purifies the blood using a machine</span><span>
</span><span>2.A patient's lab report has the abbreviations HDL and LDL, suggesting that he has recently undergone lipid tests. HDL stands for </span>high-density lipoprotein, while LDL stands for low-density lipoprotein<span> (</span>LDL).
The answer is; D
Radioactive waste poses a serious challenge to the environment. Any leakage of the waste is risky because the radioactivity can flow up the food chain and it also takes time for it to decay and become less harmful. Therefore, its effect can be felt over many generations. Therefore, safe storage of radioactive waste is a challenge (and can be very expensive) and a deterrent for pursuing the potent energy source.
Trees produce many materials but also contribute to the environment by producing oxygen, preserving water and soil, helping air quality, and supporting wildlife. they feed millions humans every year as well.
