Answer:
Scientists have determined that humans are disrupting the nitrogen cycle by altering the amount of nitrogen that is stored in the biosphere. The chief culprit is fossil fuel combustion, which releases nitric oxides into the air that combine with other elements to form smog and acid rain.
Answer:
It pushes food through the GI tract. The inside of GI tract is lined with mucous membranes. Mucous membranes are moist tissues that can secrete and absorb substances. The ability to secrete and absorb substances is necessary for the functions of the digestive system.
Explanation:
Can I have brainliest?
Answer:
D) not swim in or drink the water from the stream
Explanation:
Low pH means the water is acidic which is harmful to your skin as it can cause burns and irritations. So any means of contacting with water is not healthy. The damage to the skin happens as in acidic water it has more H+ than in the neutral water and the extra H+ ions can ionize the atoms which are combined to form different compounds in the skin when in contact.
Utility companies charge based on consumption in kWh. Range of approximately 3 to 10 cents per kWh (rates vary by locale)
So consumption is directly proportional to watts of the load.
A 30 watt light bulb running for 100 hrs
would cost half of what a 60 watt bulb burning for the same time frame.
30 x 100= 3 KWh
60 x 100= 6 kWh
So use LED lights that give same lumens for much less watts of power
