Water is essential to life because it creates us humans, plants, animals, etc. So, if we find water on Mars it would be important because water is essential to life, meaning we would know that there would be some kind of life on Mars because water makes up anything.
Answer:
Calcification, or mineralization, then occurs when hydroxyapatite crystals deposit in the bone matrix.
Explanation:
Calcification -
It is the situation of the accumulation of the salts of calcium in the tissues of the body , is known as Calcification .
This process usually occurs during the bone formation , but in abnormal condition the soft tissues of the body gets harden , leading to the situation of Calcification , it is also known as mineralization .
The crystal deposited are of hydroxyapatite in the bone matrix .
Answer:
Option 2, Arousal
Explanation:
Reticular activating system (RAS) or the ascending arousal system consists of nuclei and tracts and is involved in the regulation of wakefulness, sleep aspects and arousal.
RAS is located in the mesopons and interacts with the basal forebrainand thalamocortical systems. It activates the cerebral cortex and thereby maintain the consiusness. The neurons located at the pontomesencephalic junctionparticipates in this activity of arousal.
Hence, option 2 is correct
Answer: Wetlands, animal digestion, along with thermogenic sources such as oil and gas production.
Explanation:
Methane (CH4)
Methane comes from natural sources, such as wetlands and animal digestion, along with thermogenic sources, including oil and gas production. Natural gas is approximately 90% methane. Hope this helped!
