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# Yomna

• ### Would this leaf cutting be sufficient for propagating a monstera deliciosa?

I bought an elephant ear plant 5 days ago from a plant shop in Egypt. It was planted in the ground so it was repotted into a pot. The soil is 100% clay, as is the custom in Egypt. The day I bought it, I watered it thoroughly. Now even after 5 days, the soil is still really wet. It is placed in a balcony with glass windows which have been closed for the past three days (so it's kind of like a greenhouse).

Now, one leaf is turning yellow. I'm wondering if I should repot it in a mixture of peat moss, clay and sand to make it drain water better or if I should just leave it. I don't think sunlight is the problem because it's been getting plenty of indirect light.

1 AnswerGarden & Landscape2 weeks ago
• ### How to optimize surface area using the volume of revolution?

Hello,

I'm doing a project on optmizing a 3D object, (a water bottle). I want to make a model function that represents the bottle's edge and then rotate the function across the x axis to get the volume of revolution.

After this, I want to take the derivative of the volume and get a function for surface area, and then minimize it, to find the optimum dimensions for the bottle.

How do I do this? I want to get the surface area in terms of 'r' and 'h' and two other variables rather than 'a' and 'b' which just determine how much of the original 2D function gets included. Is this possible?

Thanks,

Yomna

Mathematics3 weeks ago
• ### How long can a bird of paradise survive without soil?

I'm going to divide a bird of paradise plant from a main plant, but I'm planting it in another pot in my home. I will remove it with the roots, will it survive until I can put it in soil tomorrow (about a full day)?

5 AnswersGarden & Landscape4 weeks ago
• ### How do I save my pineapple top that started to rot?

Hey,

I bought a pineapple top about a week ago and I've been watering it by pouring water in the middle of the leaves. I am rooting in soil not water and I did not leave it to dry first. Today I realized my inner leaves were rotting because of the watering in the middle of the crown and I found that I could easily remove them because of the rot weakening them. So I removed about 5 small leaves from the middle. Then I removed the pineapple top from the soil and decided that since it's only been six days, it wasn't too late to let the pineapple top dry out. So now I am going to leave it to dry for 2 to 3 days in indirect light. Then I will repot in fresh soil and water the soil instead of watering in the middle of the top. It has little circular spots that look like the beginning of root development in the stem, but still no roots.

Is this okay? Can I still save it? Or should I just return it to the soil and let it fight it out?

1 AnswerGarden & Landscape1 month ago
• ### How often should I water my pineapple top and will it grow?

Hello,

I have a few queries. I bought a pineapple a few days ago and it wasn't very ripe. I twisted off the top, let it dry for about an hour or maybe less, then decided to plant it directly because that's what I saw in this video: https://www.youtube.com/watch?v=D4iDBK0U6po

&ab_channel=DIYHomeandGarden

Will it work even if it wasn't ripe? And how often should I water it. It is in a relatively small pot and I've water watering for two days in the manner shown in the video but I think the soil is getting too wet. I'm thinking to water it every 3 days?

2 AnswersGarden & Landscape1 month ago

• ### How does cobalt2+ catalyze the oxidation of sulfite to sulfate?

Can you give me the equations?

Chemistry5 months ago

• ### Can someone check the answer to this question about redox for sulfite oxidation catalysis?

Chemistry5 months ago

six people pack enough food to last 4 weeks on a camping trip. After 1 week, 2 more people join their camp, bringing no food of their own. By how many days will their trip be cut short

• ### Is the area of this triangle correct?

I'm just confused because is the 9 cm considered the height.

• ### Can somone help with this data based Biology Question about mesocosms?

Biology6 months ago

a. 5.9 g

b. 5.30 g

c. 9.5 g

d. 42 g

• ### Can someone please check my answers for how to dilute a standard solution calculations?

a. 0.500 dm3

b. 0.0750 dm3

c. 0.0114 dm3

d. 0.192 dm3

• ### Someone check my answers to these questions about calculating concentration (Chemistry)?

0.050 mol dm-3

1.0 mol dm-3

0.25 mol dm-3

2.0 mol dm-3