1 million is 1 x 10^6 1 billion is 1 x 10^9 1 trillion is 1 x 10^12 So 12 trillion miles is 12 x 10^12 which converts to 1.2 x 10^1 x 10^12 = 1.2 x 10^13

6 0

3 years ago

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Which Atom or molecule is responsible for breaking up Ozone in the stratosphere?

goldenfox [79]

Chlorine has the potential to break up the ozone layer (along with bromine)

5 0

3 years ago

Suppose a fox in a food web feeds only on rabbits, squirrels, mice and birds, all of which feed exclusively on plant material. A

Illusion [34]

Answer:

square metres of plant materials required to support the fox = 3650 m²

Explanation:

From the given information:

the daily caloric requirement of the fox = 800

In a year, we have = 800 kcal × 365 /year = 292,000 kcal/year

Also, only 10% of the energy at a particular trophic level can be passed onto the next.

the net productivity of the plant material = 8000 kcal/m²/yr

So, using 10% of energy at a particular level, the fox only need 80 kcal/m²/yr

The objective is to determine in square meters, how many materials are required to support the fox.

square metres of plant materials required to support the fox = $\dfrac{292,000}{80}$

= 3650 m²

7 0

3 years ago