Define natural hazard?
A natural hazard is a natural phenomenon that might have a negative effect on humans and other animals, or the environment. Natural hazard events can be classified into two broad categories: geophysical and biological.
What is the difference between tectonic hazards and weather hazards ?
Tectonic hazards occur when the Earth's crust moves. For example, when the plates move, friction can cause them to become stuck. Tension builds until the plates release, which leads to an earthquake. Climatic hazards occur when a region has certain weather conditions, for example heavy rainfall can lead to flooding.
why do convection currents in the mantle occur?
Heat rising and falling inside the mantle creates convection currents generated by radioactive decay in the core. The convection currents move the plates. Where convection currents diverge near the Earth's crust, plates move apart
Answer:
Her weekly expenses is $234
Step-by-step explanation:
At $7.20 per kilogram
From selling 90 kg, she will have
$7.20 × 90
= $648
If her net profit is $414
To get her expenses, we subtract net profit from total income
$648 - $414
= $234
A is 180 degrees, B is 180 degrees, C is definition of complementary angle, D is 180-angle 2, and E is angle 3.
Answer:
Step-by-step explanation:
so there is only 3 decimal places. now you need to round them up.
Step-by-step explanation:
A portion of the Quadratic Formula proof is shown. Fill in the missing reason. Statements Reasons ax2 + bx + c = 0 Given ax2 + bx = -c Subtract c from both sides of the equation b LC a Divide both sides of the equation by a a b b с b b (x²+x+ Complete the square and add to both sides 2a a 2a 2a С b? b x2 Square on the right side of the equation a + a 2a 2a 4a? 4ac b2 + a Find a common denominator on the right side of the equation 2a 4a2 + 4a2 0 x2 + x + -4ac 4a Add the fractions together on the right side of the equation a 2a b? - 4ac b 2a 4a Rewrite the perfect square trinomial as a binomial squared on the left side of the equation Take the square root of both sides of the equation Multiply both sides of the equation by 2 Square the left side of the equation .
