Explanation

The ampere, symbol A, is the SI unit of electric current.

It is defined by considering the fixed  value of the elementary charge e as 1.602 176 634 x 1019,

where the unit C is equal to As and the second is defined by Δν Cs.

RK121222

Explanation

Arteries carry oxygen-rich blood away from the heart. They are hard on the outside, but  contain a smooth inner layer of epithelial cells to facilitate blood flow. The arteries also contain a strong, muscular middle layer that helps pump blood throughout the body. Capillaries connect  arteries to veins.

MUG 11-12-2022

Explanation

Joseph Priestly discovered oxygen on August 1, 1774.

The most abundant element in the Earth's crust is oxygen, making up 46.6% of Earth's mass

Explanation

A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit

Explanation

• Comets: huge masses of snow and rocks that revolve around the Sun in orbits.
• Comets: have huge glowing tails.
• Halley's Comet was last seen in: 1986
• Halley's Comet will be next seen in: 2062

Explanation

• The Moon is a non-luminous object because it does not produce its own light.
• Instead, it reflects the light of the Sun.

Explanation

Discoverer of Cell: Robert Hook

Robert Hook described the cell as: Basic unit of life

Explanation

Gregor Mendel: a scientist (from Austria)

Explanation

• The great red Spot is a hurricane in Jupiter's southern hemisphere with purple-colored clouds that spin counterclockwise at wind speeds that exceed those in any hurricane on the earth.
• The excellent purple Spot has slowly changed over time, and is presently about 1.3 instances as huge as our planet.
  

Explanation

• Our universe become born about thirteen.7 billion years in the past in a huge expansion that blew area up like a massive balloon.
• That, in a nutshell, is the big Bang theory, which truly all cosmologists and theoretical physicists suggest.
• The evidence helping the idea is considerable and convincing.