In 1998, scientists discovered that the expansion of the universe has been accelerating. what force is causing this phenomena? dark energy hubble’s law the doppler effect background radiation

The answer is Dark Energy. It is a mysterious force that seems to counteract gravity. While cosmologists had expected that the universe would be slowing in its expansion due the force of gravity, the universe was discovered to be actually accelerating (observed through a technique called Doppler shift effect by the Hubble Telescope). Dark energy is responsible for this acceleration in universe expansion.

The Dark energy concept is a scientific conjecture used to explain the accelerated  expansion of the universe. The correct option is A). Dark energy.

Dark energy is a scientific conjecture used to explain the accelerated expansion of the universe.

This force is believed to

At the present, there is no evidence of its existence or any clues of how to look for it. However, it is known that it is different from dark matter.

The correct answer is A. The force is causing this phenomena is dark energy.

You will learn more about dark energy at

link

link

the right side of the picture going down is:

polymerase

protein

transport vesicle

modified protein

the left side of the picture going down is:

dna helix

single-stranded rna

endoplasmic reticulum

ribosome

golgi apparatus

protein released from vesicle

click to let others know, how is it

read more on -

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.