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Lana71 [14]
4 years ago
10

PLEASE HELP WORTH 20 POINTS WILL MARK BRAINLIEST!!!!!!

Biology
1 answer:
777dan777 [17]4 years ago
5 0
The answer is D. 3,4,5,1,2
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Only laboratories BSL-3 and higher require fire extinguishers, emergency showers and eye wash stations.
garik1379 [7]

Answer:

false

Explanation:

Fire extinguishers, emergency showers and eye wash stations are basic safety elements that must be present in all laboratories, regardless of their classification. This is because these are essential elements for common accidents in laboratories and can be easily solved with their presence.

8 0
3 years ago
How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrus
ad-work [718]

Answer:

Radiometric dating methods

Explanation:

Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.

The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.

The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.

8 0
3 years ago
Read 2 more answers
Give three examples of what an ecosystem service is
Pavel [41]

Answer:

Examples of ecosystem services include products such as food and water, regulation of floods, soil erosion and disease outbreaks, and non-material benefits such as recreational and spiritual benefits in natural areas.

8 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST Jaiden is writing a report about the structure of an atom. She says an atom has three main part
Musya8 [376]

Answer:

disagree, an atom has two main parts. the nucleus & electron cloud. Atoms have three subatomic particles: protons, neutrons, and electrons.

Most atoms have three different subatomic particles inside them.

Explanation:

6 0
2 years ago
What is the test for proteins?
ycow [4]
Biuret Test is the test for proteins
6 0
3 years ago
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