the average story is 10 feet and the car is below ground so it would be negative. i assume the answer would be -20 feet
Answer: it can help us tackle urban environmental challenges such as stormwater management, pollution reduction, and climate resiliency. Nature also supports the health and well-being of the people that live in cities, offering benefits like stress reduction and opportunities for social connection.
Explanation:
Answer:
B and C
Explanation:
B. In a given rock sample, the amount of Silicon-32 isotopes gets divided in half about every 170yrs.
This is the concept of half-life. Half life is the time take for half of a radioactive isotope to disintegrate. The shorter the half life the faster the isotope disintegrates.
From the question, we were told that it would take 170yrs for half of the isotope of Silicon to disintegrate to Phosphorus. This is the half life.
C. The half life can be used to determine the amount of Si-32 that has decayed from the time closure temperature was reached.
The closure temperature is very important in radioactivity. It is the temperature at which a system has cooled and there is no resulting disintegration of parent and daughter isotopes.
From first order kinetics, we know that the rate at which radioactive elements decay at any time is directly proportional to the number of radioactive atoms present. A knowledge of the half life helps to figure out the number of atoms that has decayed in time.
Answer:
Rift valley, fault, graben and mid oceanic ridge are the landform formed due to divergent plate boundary.
Explanation:
Plate boundary explains convergent or destructive, divergent or constructive and transform plate boundary across the world between different plates. African rift valley formed in the Africn continent which is major landform due to divergent plate boundary. Faault and graben also formed which means narrower than rift valley. Mid oceanic ridge formed in North Atlantic ocean which is formed between North American plate and Eurasian plate due to divergent plate boundary.
