Explanation

The minimum velocity required to place or maintain a satellite in a given orbit is called orbital velocity.

Explanation

ND5-5-2023

Explanation

Hemostasis is the process to prevent and stop bleeding.

It involves blood components like proteins and platelets that help form clots.

Explanation

The area 5 degrees north to 5 degrees south of the Equator is known as the Doldrums.

This region experiences calm winds and low pressure, where the trade winds converge.

It often causing minimal wind activity.

Explanation

The weight of an object at the center of the Earth is the same as its weight on the surface.

This might seem counterintuitive, but it's because the gravitational force acting on the object is proportional to the distance from the center of the Earth.

At the center, the distance is zero, but the gravitational force is also zero because the object is surrounded by equal amounts of mass in all directions.

Explanation

The first process in a petroleum refinery is Distillation, also known as Fractional Distillation.

This process separates crude oil into various fractions or types of hydrocarbons, based on their boiling points and molecular weights.

The processes in a petroleum refinery:

1. Cracking
2. Reforming
3. Isomerization
4. Hydrotreating
5. Hydrocracking
6. Catalytic Cracking
7. Alkylation

Explanation

Lactic acid is used in the fermentation process of food, particularly in the production of yogurt, cheese, sauerkraut, and pickles.

It is produced by the action of lactic acid bacteria, such as Lactobacillus.

It converts sugars into lactic acid, preserving the food and giving it a sour flavor.

Explanation

Charles Darwin's theory of evolution through natural selection explains how the diversity of species on Earth generates itself.

His groundbreaking book, "On the Origin of Species" (1859), introduced the concept of evolution and how species adapt and diversify over time.

Explanation

The thyroid gland produces thyroxine.

It is a hormone essential for regulating metabolism, energy levels, and growth in the body.

It is located at the front of the neck.

Explanation

Sedimentary rocks are also called stratified rocks.