Answer:
Option A.
Explanation:
Essentially, the cause of a rainbow is the reflection of sunlight through individual drops of water. Light enters the water and reflects from the opposite side of the water drop, bouncing back through the point of entry. Because the angle or refraction of the light changes as it bounces back.
Bipedalism is the characteristic that hominins have and sets them apart from other primates. Bipedalism refers to locomoting. It is walking primarily upright on two feet, movement on two feet.
Walking upright distinguishes humans from other primates. Walking<span>, </span>running<span>, or </span>hopping are types of bipedal movement.
Answer:
A solution at pH 6 contains<u><em> 100 times more H+</em></u> than the same amount of solution at pH 8.
Explanation:
pH of a substance determines the hydrogen ion concentration of a solution. Acidic solution tend to have a higher concentration of H+ ions as compared to that of water. They have a concentration greater than 1 × 10^{-7} M. Basic solutions have lesser concentration of H+ ions as compared to that of water. They have a concentration lesser than 1 × 10^{-7} M. A solution from pH range 1 to 6 will be acidic. A solution from pH rage 8-10 will be basic.
Answer:
Stars form inside relatively dense concentrations of interstellar gas and dust known as molecular clouds.
Explanation:
These regions are extremely cold (temperature about 10 to 20K, just above absolute zero). At these temperatures, gases become molecular meaning that atoms bind together.
