Which of the following is not a concern regarding waste?

noise pollution
groundwater contamination
impact on wildlife habitat
gas saved by recycling paper

Noise pollution

Explanation:

Noise pollution is not a result of waste. Noise pollution is unhealthy and unwelcome sound in the environment that can cause psychological effect on the people living within the noise pollution area   such as stress, sleep disturbance, hearing loss, etc. Pollution by waste is more tangible and is mainly due to human activities that impact negatively on the environment.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."