Answer:
C
Explanation:
According to the trend line graph the temperature is 20°C after 45 minutes
Answer:
A protoplanetary disk is round rotating object which is made of dense gas. This surrounds the newly formed star, Herbig star and T tauri star.
It is also considered as a accreation because the remnants like gases and other materials fall from them on to the star.The extremely illuminating protoplanetary disk are known as the proplyds.
Whereas the nebula can be defined as the densely packed hydrogen and other gases that collapse under the force of gravity. The Nebula starts becoming smaller and smaller because the particles of gases collapse and get closer to each other.
Upon force of gravity their friction and heat increases which slowly collapse the star.
A Thermometer: measures the air temperature.
A wind vane: determines the direction from which the wind is blowing from.
An Anemometer: measures wind speed.
A Hygrometer: measures the water vapor content of air or the humidity.
A Barometer: measures air pressure
In order for cells to function and survive, their organelles work together to carry out ... The Cytoskeleton of a cell consists of a network of protein fibres that give the cell ... bounding a ring of nine pairs of Microtubules with a single pair in the centre. ... which look similar to Undulipodia, but have a very different internal structure.