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A planet’s gravity is related to which of the following? (Points : 5)
orbit
weight and density
surface area
mass and size
A?

What is the removal of trees without adequate replanting? (Points : 5)
bioremediation

a carrying capacity

deforestation

a monoculture
C?

According to Hubble’s Law, the farther away a galaxy is,

(Points : 5)
the faster it is moving toward us

the slower it is moving toward us

the slower it is moving away from us

the faster it is moving away from us
C??

Electromagnetic energy can be defined as which of the following? (Points : 5)
the waves of the electromagnetic spectrum
energy that moves as particles at the speed of light
the frequency of the emission spectrum
energy that moves as a wave at the speed of light
B?


Sagot :

AL2006

-- The gravitational force that you feel when you stand on the surface
of a planet depends on the planet's mass and size.  It has
nothing
to do with the planet's orbit.  (
Of course,"size" is also related to the
planet's mass, density, and surface area.)

-- One possible cause of deforestation is the removal of trees without
adequate replanting.

-- According to Hubble’s Law, the farther away a galaxy is, the faster
it is moving away from us

-- Electromagnetic energy can be defined as energy that moves at
the speed of light.  If you conduct experiments to determine whether
the electromagnetic energy is moving in the form of particles or waves,
you find that it behaves as both.