Answer: Coronavirus,Ebola,flu,AIDS
Wash your hands
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response.
Antibiotics fight bacterial infections either by killing bacteria or slowing and suspending its growth.
Explanation:
Answer:
It has 0.82 moles of gas
Explanation:
Given:
The Volume of gas = 30 L
The pressure of the gas = 0.7 atm
Temperature =315 K
To Find:
Number of moles of the gas = ?
Solution:
According to Ideal gas law
PV =nRT
where
P is the pressure
V is the volume
T is the temperature
n is the number of moles
R is the gas law constant
On substituting the given values in the formula, we get
(0.7) (30) = n (0.0817)(315)
21 = n (25.7355)
n = \frac{21}{25.7355}
n= 0.8159
n = 0.82(rounding off)
Answer and Explanation:
NON-RENEWABLE RESOURCES ADVANTAGES AND DISADVANTAGES
- can be replaced in a short period of time
- can damage ecosystems
- produce carbon dioxide when burned
- are in limited supply
RENEWABLE RESOURCES ADVANTAGES AND DISADVANTAGES
- cannot be used in all regions
- hydroelectric dams
- do not produce carbon dioxide
- less expensive than alternatives
Vegetative Reproduction????