1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anestetic [448]
3 years ago
9

How do greenhouse gases affect the heat flow into and out of Earth's atmosphere?

Chemistry
1 answer:
guapka [62]3 years ago
3 0

they allow solar energy to penerate the atmosphere and get absorbdd by thr earths surface thus warming it up. they absorb thr out going earths energy keeping thr energy warmth near the earths surface
You might be interested in
What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature
Lena [83]

Answer:

I believe its 1,2, and 5

Explanation:

4 0
3 years ago
How is the food in a stomach broken down into simpler substances? What chemicals help this process?
Ksenya-84 [330]

Answer:

with the help of the juice contained in it

4 0
3 years ago
Write the molecular formula of nitrate using criss cross method <br><br><br><br>​
exis [7]

Answer:

NO3 that is the answer to the question

8 0
3 years ago
Sperm can be carried by _____ grains. ANSWERSSSSSSSSSSSSSSSSS O spore O stamen O pollen
7nadin3 [17]

What is pollen in the reproduction cycle of flowering plants?

A pollen grain is a microspore containing the male gametophyte, usually reduced to two undivided cells, each with one haploid (n) nucleus. These cells are surrounded by a very resistant wall, the exine, which generally has apertures, zones with less resistance which will allow the germination of the pollen tube.

Explanation of the reproduction cycle (cf diagram above)

A given species produces flowers bearing stamens. According to species, these flowers can be unisexual (stamens only) or bisexual (stamens and carpels).

The stamen anthers include 4 pollen sacs containing sporogenous cells (diploid=2n). These sporogenous cells undergo meiosis, each producing 4 microspores (haploid=n). Two nuclei are then formed by mitosis : the vegetative nucleus and the generative nucleus. The latter divides to form 2 sperms. Simultaneously the wall of the microspores becomes thicker and takes the characteristic shape of the species : it is a pollen grain (see: What are the morphological characteristics of pollen and spore grains?). In the majority of species, the 4 grains (resulting from the 4 microspores) split up into single grains; in some cases, they remain together (tetrad = group of 4 grains). When mature, pollen grains are released by the opening of the anthers.

A pollen grain is aimed at reaching another flower of the same species, bearing carpels. The ovaries contain ovules, in which meiosis occurs, then mitoses. It results in an embryo sac with 8 nuclei, among which an egg cell and 2 central cells. When a pollen grain arrives on another flower (see : How are the spores and pollen grains transported?), it is received by the stigmas.

The pollen grain germinates through an opening of the wall: the vegetative nucleus develops into a pollen tube which is guided by the style to the ovary, then enters the micropyle of an ovule. The pollen tube releases 2 sperm nuclei into the ovule: one of the sperms fuses with the egg cell into a zygote (2n), while the other sperm fuses with central nuclei and gives rise to albumen (= food source). There are generally several ovules in an ovary : each one can be fertilized by a distinct pollen grain.

Each fertilized ovule and its albumen form a seed that will develop into a new individual of this species. hope it works

4 0
3 years ago
Read 2 more answers
How do particles in a solid move?
satela [25.4K]

Answer:

The particles in a solid vibrate in place.

Explanation:

The particles in a solid are close and tightly packed together so they have no room to flow past each other like the particles in a liquid can.

Hope this helps!

8 0
3 years ago
Other questions:
  • HURRY PLEASE
    12·2 answers
  • 4.4273 x 10 to the 5th divided by 5.3668 x 10 to the 3rd
    7·1 answer
  • The age of the solar system is estimated by the dating of rocks.<br><br> True or False
    10·2 answers
  • Im stuck on these two problems
    8·1 answer
  • What may happen to the electron when it loses its energy?
    13·2 answers
  • Use the masses of the elements below to calculate the mass of 8.70 moles of H3M (the number at the bottom of
    7·1 answer
  • Describe the brightness and temperature of the stars classified as giants.
    10·1 answer
  • A school bus drives 35 mph down the street and slows as it approaches the stop sign
    8·1 answer
  • If all atoms are composed of the same particles, how can there be more than 100 different elements?
    10·1 answer
  • How the atoms in diagram A differ from those in diagram D
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!