answersLogoWhite

0

Science

User Avatar

Richard Grimes

Lvl 10
โˆ™ 2021-10-05 18:33:55
3.89
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
9 Reviews
Add a rating

Rate this Study Guide:

โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
Cards in this guide (16)
What is technology

Science applied to practical problems (Apex)

An isotope of cesium-137 has a half-life of 30 if 1.0 g of cesium-137 disintegrates over a period of 90 years how many g of cesium-137 would remain

1/8th of a gram.

You compute it like this: After 30 years, half of the original amount would remain (1/2-gram). After another 30 years, half of that half would remain (1/4-gram). After the remaining 30 years, half of the 1/4-gram would remain, or 1/8-gram.

Wikipedia has a simple table and explanation as well:

http://en.wikipedia.org/wiki/Half-life

How has technology changed farming

it has made daily tasks easier to complete

What is the responsibility of a scientist

to study the pyhsical world

to answer scientific questions accurately

What is the purpose of genetically modified crops

Increasing food production

Which activity would be within the field of biology

Figuring out how pesticides affect plant growth is within the field of biology.

How did scientists change society's view of smoking after 1960

-- they showed that smoking causes cancer :)

kymmie

Which is a result of a seasonal change

Rabbits changing fur color APEX*

Does radiosotope 14c and 12c have the same number of protons

Yes of course

What is true of an Arrhenius acid

An Arrhenius acid donates H+ ions. (apex).

What property should a radioactive used for dating have

its half life should be similar to the age of the fossil

What is the average for the following set of measurements 3.1mL 2.7mL 4.6mL 1.9mL 8.7mL

Average = Sum/Count = 21 mL/5 = 4.2 mL.

Some technologies have a number of negative effects. Which is a negative outcome of the technology of vertical farming

rural farmers may lose their income

If scientists want to solve an environmental problem they are most likely to use .

technology

Which question can be answered using the scientific process

How much water does it take to make a plastic bag

Which human activity negatively affects the stability of the environment

Cutting down all trees in a forest

Related study guides

How has technology changed farming

What is the variable being tested in an experiment

What is one purpose of a data table

What most directly enables salmon to swim in a river

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

How has technology changed farming

What is the variable being tested in an experiment

What is one purpose of a data table

What most directly enables salmon to swim in a river

โžก๏ธ
See all cards
5.0
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
1 Review

How has technology changed farming

What is the variable being tested in an experiment

What is one purpose of a data table

What most directly enables salmon to swim in a river

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

How has technology changed farming

What is the variable being tested in an experiment

Which is an example of the way matter cycles through the bodies of living things

What is one purpose of a data table

โžก๏ธ
See all cards
1.0
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
1 Review

How has technology changed farming

What is the variable being tested in an experiment

Which is an example of the way matter cycles through the bodies of living things

What is one purpose of a data table

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews