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SCORPION-xisa [38]
3 years ago
15

Select the statements about the k-t boundary that are true. select all that apply.

Biology
1 answer:
Natasha2012 [34]3 years ago
3 0
More details are required to answer the question.

The K-t boundary or the Cretaceous-Tertiary boundary signifies the beginning of the Tertiary and the end of the Cretaceous; sixty-five million years ago. The boundary can be observed in various locations across the globe and is a relatively thin layer of dust sediments with an abnormally high amount of iridium.
Iridium is a rare earth element and is only found in large amounts in asteroids. This knowledge led scientists to conclude that the debris deposited was caused by a massive asteroid impact.
The impact crater was eventually located and was found just of the coast of the Yucatan peninsula. The asteroid was over ten miles in diameter and this impact was thought to be instrumental in the extinction of the dinosaurs.
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1.
Hitman42 [59]

Steps to improve food safety in commercial food preparation units like restaurants .

  1. Wash and sanitize hands to begin food preparation
  2. Clean & sanitize the prep sink or the 3-comparment sink
  3. Remove smallwares & dishes from the preparation area
  4. Set up equipment for food preparation

Explanation:

Food contamination is the major source for foodborne infections and illnesses

Ensuring safe food preparation, cooking and storage practices are prime importance for any commercial food preparation unit like restaurants, hotels, etc

The standardized procedures while cleaning, separating, cooking and storing food should be followed.

Cleaning processes first include personal cleaning as well as cleaning the preparation.

Personal cleaning includes washing and sanitizing the hands periodically before, during and after food preparation and after any other activities like using the toilet, baby dressing, touching garbage etc

Cleaning the preparation area including the 3-compartmental sink for washing, rinsing and the sanitizing

Separating the utensils as per cooking methods and dishes like using separate cutting knives or boards for raw and cooked meat, poultry or fish products

Cooking the food at a right temperature depending upon the type of cooking

Storing or chilling processes appropriately according to the food type under appropriate temperature should be followed.

5 0
3 years ago
You read an article about vegetables grown in the United States. According to the article’s author, Americans need to take
Scorpion4ik [409]

Answer: Option D.

It is an evidence -based report.

Explanation:

An evidence based report is a report that is written based on scientific evidence to draw out conclusion or arguments for guidance and decision making for the people.

The article that was written, was base on some scientific proof that vegetables lack some nutrients. The vegetables have been analyzed and the constituents have been known. Conclusion was arrived at the Americans need to take dietary supplements to meet up with the daily nutrients requirements while taking vegetables.

4 0
3 years ago
Select a type of renewable energy. Compare it to fossil fuels by explaining two pros and two cons for its implementation on a la
myrzilka [38]

Answer:

Bio gas

Explanation:

Bio gas is gotten from the anaerobic breaking down of biomass especially animal waste.

PROS:

A. it is renewable: biogas is renewable and has an endless supply of material since animals are the main source when compared to fossil fuels.

B. It doesn't involve a rigorous mining exersice to get to like fossil fuels and it is in accessible abundance.

CON:

A. A lot of waste is needed for the product of biogas and the final waste (sludge) from the production process can be a huge problem to dispose off.

B. Some of the gases liberated in the manufacturing process are greenhouse gas, especially methane. These gases if let out, will contribute immensly to global warming.

8 0
3 years ago
What theory used the practice of introspection to study consciousness?
egoroff_w [7]
Structuralism used the practice of introspection to study consciousness.

Hope this helps. 
7 0
3 years ago
1. What does the dermal tissue system do?​
mezya [45]

Answer:

Dermal tissue covers and protects the plant, and controls gas exchange and water absorption (in roots). Dermal tissue of the stems and leaves is covered by a waxy cuticle that prevents evaporative water loss.

5 0
3 years ago
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