1/2 of a radioactive substance will remain after 3 half lives.
Answer:
Incorrects:
Claim 1: When forests are cleared, we take away an opportunity to remove carbon from the atmosphere.
Claim 2: Carbon moves through biological systems and returns to the atmosphere through photosynthesis.
Claim 3: The amount of carbon involved in rapid cycling is much less than 1 percent of the total amount of carbon on Earth.
Explanation:
- The carbon contained in forest products makes a small and manageable contribution to the global carbon balance. Globally, the net effect on atmospheric concentration is negligible, unless the rate of decomposition in geographically displaced product stocks is different from that in the forest ecosystem from which it was removed. However, controlling these rates through proper management can lead to some degree of mitigation of increases in atmospheric CO2.
- During the carbon cycle, animals and plants release carbon dioxide into the atmosphere through cellular respiration, and plants capture carbon dioxide through photosynthesis.
- The amount of carbon involved in rapid cycling it is the largest since it includes the carbon exchange between living beings, and is intertwined with the carbon cycle through long-term geological processes
The answer is C because the key is “group that live in the same area”
Answer: 1. Magnetic lines of force start from the North Pole and end at the pole, they're continuos through the body of the magnet
, Magnetic lines of force can meet up with iron more easily than air.
, Two magnetic lines of force can't intersect one another, they have a tendency to contract longitudinally., they have an inclination to expand laterally.
The answer is brian injuries
