Answer:
Food production contributes to Climate change, eutrophication and acid rain, as well as the depletion of biodiversity.
Explanation:
Answer:
Drinking water is a part of life
Answer:
1. earliest evidence of liquid water
2. oldest rock sample
3. first chemical signature of life
4. first cratons
5. oldest undisputed fossils
Explanation:
Earliest evidence of liquid water (4.40 Ga)
Oldest rock sample (4.03 Ga)
First chemical signature of life (3.8 Ga)
The first cratons (3.2 to 2.7 Ga)
Oldest undisputed fossils (3.2 Ga)
<span>x^2+8x-20=0
Factor the left side of the equation
</span><span><span>(x−2)</span><span>(x+10)</span></span>=<span>0
</span>
Set the factors to both equal the number 0
<span><span>x−2</span>=<span><span><span>0
and/or
</span>x</span>+10</span></span>=<span>0
</span>x = 2 and/or x = -10
sedimentary rocks provide geologists with information necessary to study the history of earth.