3 years ago

Describe 1 way to reduce the shortage of food for a growing human population.

1 answer:

5 0

The answer is; producing genetically modified organism

GMOs have been shown to produce varieties of organisms that have increased yields and are resistant to the upsets of climate change and diseases. GMOs are made by introducing genes into an organism that will confer particular desired traits such as disease and drought resistance.

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What is the correct way to balance this equation? H2 + O2→H2O

Vsevolod [243]

Answer:

It looks like the second one is the correct answer.

8 0

2 years ago

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The three osicles known as the hammer, anvil and stirrup __________.

34kurt

Malleus, incus, and stapes, respectively, and collectively, as "middle ear ossicles<span>".</span>

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3 years ago

A student pulls a block over a rough surface with a constant force FP that is at an angle θ above the horizontal, as shown above

gizmo_the_mogwai [7]

Answer:

B.The force of friction between the block and surface will decrease.

Explanation:

The force of friction is given by

$F_s = \mu N$

where $\mu$ is the coefficient of friction and $N$ is the normal force.

When the student pulls on the block with force $F_p$ at an angle $\theta$ , the normal force on the block becomes

$N = Mg- F_psin(\theta)$

and hence the frictional force becomes

$F_s = \mu (Mg- F_psin(\theta))$ .

Now, as we increase $\theta$ , $sin(\theta)$ increases which as a result decreases the normal force $Mg- F_psin(\theta)$ , which also means the frictional force decreases; Hence choice B stands true.