Answer:
(B) tightly packed protons and neutrons
Explanation:
- Nucleus of any atom is the dense central part of any atom.
- It consists of two sub-atomic particle namely proton and neutron.
- These sub-atomic parts are tightly packed in nucleus which makes the nucleus dense .
- This dense nucleus is responsible for most of the mass of atom.
- The atomic mass for any atom is decided by sum of the mass of proton and neutron
Thus, correct answer is
(B) tightly packed protons and neutrons
Ohm's law states that V = IR
87 = 2 x R
R = 87/2 ohms
Hope this helps :)
Answer:
A By returning nutrients to the soil
Explanation:
Here are the options
A By returning nutrients to the soil
B By releasing oxygen into the air
C By making space for new animals
D By decreasing the population of herbivores
The process by which mushrooms act on dead trees provide nutrients that are necessary for the process of photosynthesis.
Types of decomposers
- Fungi - mushroom is an example of a fungi
- Bacteria
- Insects - beetle is an example of an insect
- Earthworms
Functions of a decomposer
- A decomposer recycles dead plants and animals to release nutrients into the soil.
- They are ecological cleaners. they carry out this function by disintegrating dead plants and animal remains.
