All categories

2 years ago

Which problem does the Montreal Protocol attempt to remedy?

Biology

1 answer:

madreJ [45]2 years ago

5 0

Answer:

A.The hole in the ozone layer

Explanation:

• Montreal protocol is an international treaty that was signed to control the use of substances that are resulting in the depletion of the ozone hole.

This treaty was signed in the year 1987 and became effective form 1989.

• Since the time that this treaty has come into force, there has been a significant improvement in the ozone hole that was observed over Antarctic as it's size has decreased.

• This improvement has been possible because the treaty helped to phase out chemicals such as chlorofluorocarbons, carbon tetrachloride, etc. that are responsible for ozone hole depletion.

You might be interested in

Which group of words are energy sources for muscles?

devlian [24]

I would say D. Osteoarthritis, presbyopia

7 0

3 years ago

Both bacteria and amoeba are unicellular organisms. Bacteria are considered to be prokaryotes, whereas amoebas are considered to

JulsSmile [24]

The correct option is D.
Although both bacteria and amoeba are unicellular organisms, the bacteria is considered to be a prokaryote because it lacks a true nucleus and membrane bound organelles and amoeba is considered to be a eukaryote because, it has a true nucleus and well defined cell organelles.

6 0

3 years ago

Match the following:Part A1. Transverse foramina present.2. No canals or foramen present. It articulates superiorly with the sac

Stels [109]

Answer:

1. Transverse foramina present: Cervical

2. No canals or foramen present. It articulates superiorly with the sacrum: Coccyx

3. Receive the most stress: Lumbar

4. Attach to ribs: Thoracic

5. Articulates with hip bones of the pelvis: Sacrum

Explanation:

The vertebral column is a series of 33 bones called vertebrae that play a key role in organ protection, movement of body, and overall support. The column has been divided into 5 different regions with the number of bones.

1. Cervical Vertebrate: These are the group of seven vertebrae of the neck, start immediately below the skull. Two cervical bones C1 and C2 are unique in function. They are responsible for the movement of the head. They have transverse foramina which gives passage to vertebral artery and vein.

2. Thoracic Vertebrae: They are a group of twelve small bones that form the vertebral spine in the upper trunk. The function of the thoracic vertebrae is to articulate with ribs to produce the bony thorax.

3. Lumbar Vertebrae: This is the largest segment of the vertebral column that consists of 5 bones between the rib cage and pelvis. They carry all of the upper body weight providing flexibility and movement to the trunk region. This is why it can receive the most stress easily.

4. Sacrum Vertebrae: There are 5 sacral vertebral fused bones. It connects to the hip bones and play role in forming a strong pelvis.

5. coccyx Vertebrae: These are a group of 4 fused bone. There is no vertebral canal due to a lack of vertebral arches. They provide an attachment site for muscles ligament and tendons. They also play a role in stabilization and support while sitting.

5 0

3 years ago

A substance witha PH of 6 is called A. suspension B. base C. acid D. Water. and why

Vesnalui [34]

Answer:

rom the oxygen atom being at one end of a water molecule and the ... b. The attraction between the hydrogen atom on one water molecule and the ... an example. c. A hydrogen bond is stronger than a covalent bond. d. They are the Water SUBSTANCES IN SOLUTIONS. Acids, Bases, and pH

5 0

3 years ago

What is a carpal? Where is it located in a typical flower?

insens350 [35]

A carpel on a typical flower is located on the bud tips, what I mean is that where the stamen is nearly right beside it is the carpel. A carpel is like the reproductive organism of a flower.

8 0

3 years ago

Read 2 more answers