Answer:
The prevention of loss in the most top layer of soil from the erosion or maybe prevention of deducted fertility
Answer:
Happiness, hydration, food
Answer:
1. False
2. True
3. True
4. Kingdoms
5. Backbones
6. Two names
Explanation:
I'm really sorry if I got it wrong, some of the questions are not in my Biology syllabus.
*<em>first and second questions' answers are not sure</em>
The equation is balanced because the mass and charge are equal on both sides of the reaction equation.
In a nuclear reaction, one nucleus is transformed into another. In this case of the equation shown, the radon nucleus is being transformed into a polonium nucleus with the emission of an alpha particle.
The equation is balanced because a total mass of 219 is found on both sides of the reaction equation and a total charge of 86. Recall that an alpha particle is the same as a helium nucleus with a mass of four units and a charge of two units.
Learn more: brainly.com/question/13440572
Hello!
To solve this problem you need to use the following equation for heat transfer to calculate the heat added (Q) and substitute in this equation the values for specific heat (c), mass (m) and temperature difference (ΔT). The following equation describes the heat needed to raise the temperature of a given object:

:
So, to heat the cafeteria fork made of iron with a mass of 20 grams from 25 °C to 75°C, you'll need
121 cal of heat energy.